diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 400ac126..2e4a7918 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -188,16 +188,22 @@ jobs:
 
       - name: Download and run latest `substrate-contracts-node` binary
         if: runner.os == 'Linux'
+        env:
+          CONTRACTS_NODE_URL: https://github.com/paritytech/substrate-contracts-node/releases/latest/download/substrate-contracts-node-
+          CONTRACTS_NODE_OS: linux
         run: |
-          curl -L -o substrate-contracts-node.zip 'https://gitlab.parity.io/parity/mirrors/substrate-contracts-node/-/jobs/artifacts/main/download?job=build-linux' && \
+          curl -L -o substrate-contracts-node.tar.gz "$CONTRACTS_NODE_URL$CONTRACTS_NODE_OS.tar.gz"
           unzip substrate-contracts-node.zip && \
           chmod +x artifacts/substrate-contracts-node-linux/substrate-contracts-node &&
           ./artifacts/substrate-contracts-node-linux/substrate-contracts-node -linfo,runtime::contracts=debug  2>&1 | tee /tmp/contracts-node.log &
 
       - name: Download and run latest `substrate-contracts-node` binary
         if: runner.os == 'macOS'
+        env:
+          CONTRACTS_NODE_URL: https://github.com/paritytech/substrate-contracts-node/releases/latest/download/substrate-contracts-node-
+          CONTRACTS_NODE_OS: mac-universal
         run: |
-            curl -L -o substrate-contracts-node.zip 'https://gitlab.parity.io/parity/mirrors/substrate-contracts-node/-/jobs/artifacts/main/download?job=build-mac' && \
+            curl -L -o substrate-contracts-node.tar.gz "$CONTRACTS_NODE_URL$CONTRACTS_NODE_OS.tar.gz"
             unzip substrate-contracts-node.zip && \
             chmod +x artifacts/substrate-contracts-node-mac/substrate-contracts-node &&
             ./artifacts/substrate-contracts-node-mac/substrate-contracts-node -linfo,runtime::contracts=debug  2>&1 | tee /tmp/contracts-node.log &
diff --git a/basic-contract-caller/Cargo.toml b/basic-contract-caller/Cargo.toml
index 3b8fb17b..feb70f08 100755
--- a/basic-contract-caller/Cargo.toml
+++ b/basic-contract-caller/Cargo.toml
@@ -1,12 +1,12 @@
 [package]
 name = "basic-contract-caller"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 # Note: We **need** to specify the `ink-as-dependency` feature.
 #
@@ -14,7 +14,7 @@ ink = { version = "5.0.0", default-features = false }
 other-contract = { path = "other-contract", default-features = false, features = ["ink-as-dependency"] }
 
 [dev-dependencies]
-ink_e2e = { version = "5.0.0" }
+ink_e2e = { version = "5.1.0" }
 
 [lib]
 path = "lib.rs"
diff --git a/basic-contract-caller/other-contract/Cargo.toml b/basic-contract-caller/other-contract/Cargo.toml
index b941a058..6eb419bd 100755
--- a/basic-contract-caller/other-contract/Cargo.toml
+++ b/basic-contract-caller/other-contract/Cargo.toml
@@ -1,15 +1,15 @@
 [package]
 name = "other-contract"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [dev-dependencies]
-ink_e2e = { version = "5.0.0" }
+ink_e2e = { version = "5.1.0" }
 
 [lib]
 path = "lib.rs"
diff --git a/call-runtime/Cargo.toml b/call-runtime/Cargo.toml
index 8a65abac..bf6a8b09 100644
--- a/call-runtime/Cargo.toml
+++ b/call-runtime/Cargo.toml
@@ -1,12 +1,12 @@
 [package]
 name = "call-runtime"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 # Substrate
 #
@@ -18,7 +18,7 @@ sp-io = { version = "23.0.0", default-features = false, features = ["disable_pan
 sp-runtime = { version = "24.0.0", default-features = false }
 
 [dev-dependencies]
-ink_e2e = { version = "5.0.0" }
+ink_e2e = { version = "5.1.0" }
 
 [lib]
 path = "lib.rs"
diff --git a/combined-extension/Cargo.toml b/combined-extension/Cargo.toml
index 90e9b781..1dcacfbe 100755
--- a/combined-extension/Cargo.toml
+++ b/combined-extension/Cargo.toml
@@ -1,12 +1,12 @@
 [package]
 name = "combined_extension"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 psp22_extension = { path = "../psp22-extension", default-features = false, features = ["ink-as-dependency"] }
 rand_extension = { path = "../rand-extension", default-features = false, features = ["ink-as-dependency"] }
 
diff --git a/conditional-compilation/Cargo.toml b/conditional-compilation/Cargo.toml
index f1b6241a..86afe242 100755
--- a/conditional-compilation/Cargo.toml
+++ b/conditional-compilation/Cargo.toml
@@ -1,14 +1,14 @@
 [package]
 name = "conditional-compilation"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [dev-dependencies]
-ink_e2e = { version = "5.0.0" }
+ink_e2e = { version = "5.1.0" }
 
 [lib]
 path = "lib.rs"
diff --git a/contract-storage/Cargo.toml b/contract-storage/Cargo.toml
index 6142bba7..13355ead 100755
--- a/contract-storage/Cargo.toml
+++ b/contract-storage/Cargo.toml
@@ -1,15 +1,15 @@
 [package]
 name = "contract-storage"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [dev-dependencies]
-ink_e2e = { version = "5.0.0" }
+ink_e2e = { version = "5.1.0" }
 
 [lib]
 path = "lib.rs"
diff --git a/contract-terminate/Cargo.toml b/contract-terminate/Cargo.toml
index 06c001bb..3c96a74c 100644
--- a/contract-terminate/Cargo.toml
+++ b/contract-terminate/Cargo.toml
@@ -1,15 +1,15 @@
 [package]
 name = "contract_terminate"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [dev-dependencies]
-ink_e2e = { version = "5.0.0" }
+ink_e2e = { version = "5.1.0" }
 
 [lib]
 path = "lib.rs"
diff --git a/contract-transfer/Cargo.toml b/contract-transfer/Cargo.toml
index 714dee5c..17154b49 100644
--- a/contract-transfer/Cargo.toml
+++ b/contract-transfer/Cargo.toml
@@ -1,15 +1,15 @@
 [package]
 name = "contract_transfer"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [dev-dependencies]
-ink_e2e = { version = "5.0.0" }
+ink_e2e = { version = "5.1.0" }
 
 [lib]
 path = "lib.rs"
diff --git a/contract-xcm/Cargo.toml b/contract-xcm/Cargo.toml
new file mode 100644
index 00000000..fcfb36bb
--- /dev/null
+++ b/contract-xcm/Cargo.toml
@@ -0,0 +1,27 @@
+[package]
+name = "contract-xcm"
+version = "5.1.0"
+authors = ["Use Ink <ink@use.ink>"]
+edition = "2021"
+publish = false
+
+[dependencies]
+ink = { version = "5.1.0", default-features = false }
+frame-support = { version = "32.0.0", default-features = false }
+pallet-balances = { version = "33.0.0", default-features = false }
+
+[dev-dependencies]
+ink_e2e = { version = "5.1.0", features = ["sandbox"] }
+
+[lib]
+path = "lib.rs"
+
+[features]
+default = ["std"]
+std = [
+    "ink/std",
+    "pallet-balances/std",
+    "frame-support/std",
+]
+ink-as-dependency = []
+e2e-tests = []
diff --git a/contract-xcm/lib.rs b/contract-xcm/lib.rs
new file mode 100644
index 00000000..93cf0486
--- /dev/null
+++ b/contract-xcm/lib.rs
@@ -0,0 +1,272 @@
+#![cfg_attr(not(feature = "std"), no_std, no_main)]
+
+#[ink::contract]
+mod contract_xcm {
+    use ink::{
+        env::Error as EnvError,
+        xcm::prelude::*,
+    };
+
+    /// A trivial contract used to exercise XCM API.
+    #[ink(storage)]
+    #[derive(Default)]
+    pub struct ContractXcm;
+
+    #[derive(Debug, PartialEq, Eq)]
+    #[ink::scale_derive(Encode, Decode, TypeInfo)]
+    pub enum RuntimeError {
+        XcmExecuteFailed,
+        XcmSendFailed,
+    }
+
+    impl From<EnvError> for RuntimeError {
+        fn from(e: EnvError) -> Self {
+            use ink::env::ReturnErrorCode;
+            match e {
+                EnvError::ReturnError(ReturnErrorCode::XcmExecutionFailed) => {
+                    RuntimeError::XcmExecuteFailed
+                }
+                EnvError::ReturnError(ReturnErrorCode::XcmSendFailed) => {
+                    RuntimeError::XcmSendFailed
+                }
+                _ => panic!("Unexpected error from `pallet-contracts`."),
+            }
+        }
+    }
+
+    impl ContractXcm {
+        /// The constructor is `payable`, so that during instantiation it can be given
+        /// some tokens that will be further transferred when transferring funds through
+        /// XCM.
+        #[ink(constructor, payable)]
+        pub fn new() -> Self {
+            Default::default()
+        }
+
+        /// Tries to transfer `value` from the contract's balance to `receiver`.
+        ///
+        /// Fails if:
+        ///  - called in the off-chain environment
+        ///  - the chain is not configured to support XCM
+        ///  - the XCM program executed failed (e.g contract doesn't have enough balance)
+        #[ink(message)]
+        pub fn transfer_through_xcm(
+            &mut self,
+            receiver: AccountId,
+            value: Balance,
+        ) -> Result<(), RuntimeError> {
+            let asset: Asset = (Here, value).into();
+            let beneficiary = AccountId32 {
+                network: None,
+                id: *receiver.as_ref(),
+            };
+
+            let message: Xcm<()> = Xcm::builder()
+                .withdraw_asset(asset.clone().into())
+                .buy_execution(asset.clone(), Unlimited)
+                .deposit_asset(asset.into(), beneficiary.into())
+                .build();
+
+            self.env()
+                .xcm_execute(&VersionedXcm::V4(message))
+                .map_err(Into::into)
+        }
+
+        /// Transfer some funds on the relay chain via XCM from the contract's derivative
+        /// account to the caller's account.
+        ///
+        /// Fails if:
+        ///  - called in the off-chain environment
+        ///  - the chain is not configured to support XCM
+        ///  - the XCM program executed failed (e.g contract doesn't have enough balance)
+        #[ink(message)]
+        pub fn send_funds(
+            &mut self,
+            value: Balance,
+            fee: Balance,
+        ) -> Result<XcmHash, RuntimeError> {
+            let destination: Location = Parent.into();
+            let asset: Asset = (Here, value).into();
+            let beneficiary = AccountId32 {
+                network: None,
+                id: *self.env().caller().as_ref(),
+            };
+
+            let message: Xcm<()> = Xcm::builder()
+                .withdraw_asset(asset.clone().into())
+                .buy_execution((Here, fee).into(), WeightLimit::Unlimited)
+                .deposit_asset(asset.into(), beneficiary.into())
+                .build();
+
+            let hash = self.env().xcm_send(
+                &VersionedLocation::V4(destination),
+                &VersionedXcm::V4(message),
+            )?;
+
+            Ok(hash)
+        }
+    }
+
+    #[cfg(all(test, feature = "e2e-tests"))]
+    mod e2e_tests {
+        use frame_support::{
+            sp_runtime::AccountId32,
+            traits::tokens::currency::Currency,
+        };
+        use ink::{
+            env::{
+                test::default_accounts,
+                DefaultEnvironment,
+            },
+            primitives::AccountId,
+        };
+        use ink_e2e::{
+            preset::mock_network::{
+                self,
+                primitives::{
+                    CENTS,
+                    UNITS,
+                },
+                MockNetworkSandbox,
+            },
+            ChainBackend,
+            ContractsBackend,
+        };
+        use mock_network::{
+            parachain::estimate_message_fee,
+            parachain_account_sovereign_account_id,
+            relay_chain,
+            Relay,
+            TestExt,
+        };
+
+        use super::*;
+
+        /// The contract will be given 1000 tokens during instantiation.
+        pub const CONTRACT_BALANCE: u128 = 1_000 * UNITS;
+
+        type E2EResult<T> = Result<T, Box<dyn std::error::Error>>;
+
+        #[ink_e2e::test(backend(runtime_only(sandbox = MockNetworkSandbox)))]
+        async fn xcm_execute_works<Client: E2EBackend>(
+            mut client: Client,
+        ) -> E2EResult<()> {
+            // given
+            let mut constructor = ContractXcmRef::new();
+            let contract = client
+                .instantiate("contract_xcm", &ink_e2e::alice(), &mut constructor)
+                .value(CONTRACT_BALANCE)
+                .submit()
+                .await
+                .expect("instantiate failed");
+            let mut call_builder = contract.call_builder::<ContractXcm>();
+
+            let receiver: AccountId = default_accounts::<DefaultEnvironment>().bob;
+
+            let contract_balance_before = client
+                .free_balance(contract.account_id)
+                .await
+                .expect("Failed to get account balance");
+            let receiver_balance_before = client
+                .free_balance(receiver)
+                .await
+                .expect("Failed to get account balance");
+
+            // when
+            let amount = 1000 * CENTS;
+            let transfer_message = call_builder.transfer_through_xcm(receiver, amount);
+
+            let call_res = client
+                .call(&ink_e2e::alice(), &transfer_message)
+                .submit()
+                .await
+                .expect("call failed");
+
+            assert!(call_res.return_value().is_ok());
+
+            // then
+            let contract_balance_after = client
+                .free_balance(contract.account_id)
+                .await
+                .expect("Failed to get account balance");
+            let receiver_balance_after = client
+                .free_balance(receiver)
+                .await
+                .expect("Failed to get account balance");
+
+            assert_eq!(contract_balance_before, contract_balance_after + amount);
+            assert_eq!(receiver_balance_before, receiver_balance_after - amount);
+
+            Ok(())
+        }
+
+        #[ink_e2e::test(backend(runtime_only(sandbox = MockNetworkSandbox)))]
+        async fn incomplete_xcm_execute_works<Client: E2EBackend>(
+            mut client: Client,
+        ) -> E2EResult<()> {
+            let mut constructor = ContractXcmRef::new();
+            let contract = client
+                .instantiate("contract_xcm", &ink_e2e::alice(), &mut constructor)
+                .value(CONTRACT_BALANCE)
+                .submit()
+                .await
+                .expect("instantiate failed");
+            let mut call_builder = contract.call_builder::<ContractXcm>();
+
+            // This will fail since we have insufficient balance
+            let transfer_message = call_builder.transfer_through_xcm(
+                default_accounts::<DefaultEnvironment>().bob,
+                CONTRACT_BALANCE + 1,
+            );
+
+            let call_res = client
+                .call(&ink_e2e::alice(), &transfer_message)
+                .submit()
+                .await?
+                .return_value();
+
+            assert!(matches!(call_res, Err(RuntimeError::XcmExecuteFailed)));
+            Ok(())
+        }
+
+        #[ink_e2e::test(backend(runtime_only(sandbox = MockNetworkSandbox)))]
+        async fn xcm_send_works<Client: E2EBackend>(mut client: Client) -> E2EResult<()> {
+            let mut constructor = ContractXcmRef::new();
+            let contract = client
+                .instantiate("contract_xcm", &ink_e2e::alice(), &mut constructor)
+                .value(CONTRACT_BALANCE)
+                .submit()
+                .await
+                .expect("instantiate failed");
+
+            Relay::execute_with(|| {
+                let sovereign_account = parachain_account_sovereign_account_id(
+                    1u32,
+                    AccountId32::from(contract.account_id.0),
+                );
+
+                // Fund the contract's derivative account, so we can use it as a sink, to
+                // transfer funds to the caller.
+                relay_chain::Balances::make_free_balance_be(
+                    &sovereign_account,
+                    CONTRACT_BALANCE,
+                );
+            });
+
+            let amount = 1000 * CENTS;
+            let fee = estimate_message_fee(4);
+
+            let mut call_builder = contract.call_builder::<ContractXcm>();
+            let message = call_builder.send_funds(amount, fee);
+            let call_res = client.call(&ink_e2e::alice(), &message).submit().await?;
+            assert!(call_res.return_value().is_ok());
+
+            Relay::execute_with(|| {
+                let alice = AccountId32::from(ink_e2e::alice().public_key().0);
+                assert_eq!(relay_chain::Balances::free_balance(&alice), amount - fee);
+            });
+
+            Ok(())
+        }
+    }
+}
diff --git a/cross-contract-calls/Cargo.toml b/cross-contract-calls/Cargo.toml
index 984f7591..ef3c3d19 100755
--- a/cross-contract-calls/Cargo.toml
+++ b/cross-contract-calls/Cargo.toml
@@ -1,12 +1,12 @@
 [package]
 name = "cross-contract-calls"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 # Note: We **need** to specify the `ink-as-dependency` feature.
 #
@@ -14,7 +14,7 @@ ink = { version = "5.0.0", default-features = false }
 other-contract = { path = "other-contract", default-features = false, features = ["ink-as-dependency"] }
 
 [dev-dependencies]
-ink_e2e = { version = "5.0.0" }
+ink_e2e = { version = "5.1.0" }
 
 [lib]
 path = "lib.rs"
diff --git a/cross-contract-calls/other-contract/Cargo.toml b/cross-contract-calls/other-contract/Cargo.toml
index b941a058..6eb419bd 100755
--- a/cross-contract-calls/other-contract/Cargo.toml
+++ b/cross-contract-calls/other-contract/Cargo.toml
@@ -1,15 +1,15 @@
 [package]
 name = "other-contract"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [dev-dependencies]
-ink_e2e = { version = "5.0.0" }
+ink_e2e = { version = "5.1.0" }
 
 [lib]
 path = "lib.rs"
diff --git a/custom-allocator/Cargo.toml b/custom-allocator/Cargo.toml
index 9b98d51e..a962be71 100755
--- a/custom-allocator/Cargo.toml
+++ b/custom-allocator/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "custom-allocator"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
@@ -8,13 +8,13 @@ publish = false
 [dependencies]
 # We're going to use a different allocator than the one provided by ink!. To do that we
 # first need to disable the included memory allocator.
-ink = { version = "5.0.0", default-features = false, features = ["no-allocator"]  }
+ink = { version = "5.1.0", default-features = false, features = ["no-allocator"]  }
 
 # This is going to be our new global memory allocator.
 dlmalloc = {version = "0.2", default-features = false, features = ["global"] }
 
 [dev-dependencies]
-ink_e2e = { version = "5.0.0" }
+ink_e2e = { version = "5.1.0" }
 
 [lib]
 path = "lib.rs"
diff --git a/custom-environment/Cargo.toml b/custom-environment/Cargo.toml
index 1687ef58..e79f8a90 100644
--- a/custom-environment/Cargo.toml
+++ b/custom-environment/Cargo.toml
@@ -1,15 +1,15 @@
 [package]
 name = "custom-environment"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [dev-dependencies]
-ink_e2e = { version = "5.0.0" }
+ink_e2e = { version = "5.1.0" }
 
 [lib]
 path = "lib.rs"
diff --git a/dns/Cargo.toml b/dns/Cargo.toml
index 99a926a6..c7eef8f6 100644
--- a/dns/Cargo.toml
+++ b/dns/Cargo.toml
@@ -1,12 +1,12 @@
 [package]
 name = "dns"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [lib]
 path = "lib.rs"
diff --git a/e2e-call-runtime/Cargo.toml b/e2e-call-runtime/Cargo.toml
index a20c8cdb..c3dc54f8 100644
--- a/e2e-call-runtime/Cargo.toml
+++ b/e2e-call-runtime/Cargo.toml
@@ -1,15 +1,15 @@
 [package]
 name = "e2e_call_runtime"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [dev-dependencies]
-ink_e2e = { version = "5.0.0" }
+ink_e2e = { version = "5.1.0" }
 
 [lib]
 path = "lib.rs"
diff --git a/e2e-runtime-only-backend/Cargo.toml b/e2e-runtime-only-backend/Cargo.toml
index 18faa7fc..4bb5dcc2 100644
--- a/e2e-runtime-only-backend/Cargo.toml
+++ b/e2e-runtime-only-backend/Cargo.toml
@@ -1,15 +1,15 @@
 [package]
 name = "e2e-runtime-only-backend"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [dev-dependencies]
-ink_e2e = { version = "5.0.0" }
+ink_e2e = { version = "5.1.0" }
 
 [lib]
 path = "lib.rs"
diff --git a/erc1155/Cargo.toml b/erc1155/Cargo.toml
index f6f0756b..73fb8df9 100644
--- a/erc1155/Cargo.toml
+++ b/erc1155/Cargo.toml
@@ -1,12 +1,12 @@
 [package]
 name = "erc1155"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [lib]
 path = "lib.rs"
diff --git a/erc20/Cargo.toml b/erc20/Cargo.toml
index bd2f7bee..848080d7 100644
--- a/erc20/Cargo.toml
+++ b/erc20/Cargo.toml
@@ -1,15 +1,15 @@
 [package]
 name = "erc20"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [dev-dependencies]
-ink_e2e = { version = "5.0.0" }
+ink_e2e = { version = "5.1.0" }
 
 [lib]
 path = "lib.rs"
diff --git a/erc721/Cargo.toml b/erc721/Cargo.toml
index 0316c2e4..b07e5d50 100644
--- a/erc721/Cargo.toml
+++ b/erc721/Cargo.toml
@@ -1,12 +1,12 @@
 [package]
 name = "erc721"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [lib]
 path = "lib.rs"
diff --git a/erc721/lib.rs b/erc721/lib.rs
index 637836f9..5b2cbafd 100644
--- a/erc721/lib.rs
+++ b/erc721/lib.rs
@@ -226,6 +226,7 @@ mod erc721 {
                 .ok_or(Error::CannotFetchValue)?;
             owned_tokens_count.insert(caller, &count);
             token_owner.remove(id);
+            self.clear_approval(id);
 
             self.env().emit_event(Transfer {
                 from: Some(caller),
@@ -635,6 +636,31 @@ mod erc721 {
             assert_eq!(erc721.burn(1), Err(Error::NotOwner));
         }
 
+        #[ink::test]
+        fn burn_clears_approval() {
+            let accounts =
+                ink::env::test::default_accounts::<ink::env::DefaultEnvironment>();
+            // Create a new contract instance.
+            let mut erc721 = Erc721::new();
+            // Create token Id 1 for Alice
+            assert_eq!(erc721.mint(1), Ok(()));
+            // Alice gives approval to Bob to transfer token Id 1
+            assert_eq!(erc721.approve(accounts.bob, 1), Ok(()));
+            // Alice burns token
+            assert_eq!(erc721.burn(1), Ok(()));
+            // Set caller to Frank
+            set_caller(accounts.frank);
+            // Frank mints token Id 1
+            assert_eq!(erc721.mint(1), Ok(()));
+            // Set caller to Bob
+            set_caller(accounts.bob);
+            // Bob tries to transfer token Id 1 from Frank to himself
+            assert_eq!(
+                erc721.transfer_from(accounts.frank, accounts.bob, 1),
+                Err(Error::NotApproved)
+            );
+        }
+
         #[ink::test]
         fn transfer_from_fails_not_owner() {
             let accounts =
diff --git a/events/Cargo.toml b/events/Cargo.toml
index 62baa9ea..fc814e85 100644
--- a/events/Cargo.toml
+++ b/events/Cargo.toml
@@ -1,19 +1,19 @@
 [package]
 name = "events"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 event-def = { path = "event-def", default-features = false }
 event-def2 = { path = "event-def2", default-features = false }
 event-def-unused = { path = "event-def-unused", default-features = false }
 
 [dev-dependencies]
-ink_e2e = { version = "5.0.0" }
+ink_e2e = { version = "5.1.0" }
 
 [lib]
 path = "lib.rs"
diff --git a/events/event-def-unused/Cargo.toml b/events/event-def-unused/Cargo.toml
index a41f0422..fe283ee0 100644
--- a/events/event-def-unused/Cargo.toml
+++ b/events/event-def-unused/Cargo.toml
@@ -4,7 +4,7 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [features]
 default = ["std"]
diff --git a/events/event-def/Cargo.toml b/events/event-def/Cargo.toml
index 78cbff7f..2e72cfc8 100644
--- a/events/event-def/Cargo.toml
+++ b/events/event-def/Cargo.toml
@@ -4,7 +4,7 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [features]
 default = ["std"]
diff --git a/events/event-def2/Cargo.toml b/events/event-def2/Cargo.toml
index d7ed2993..10956b53 100644
--- a/events/event-def2/Cargo.toml
+++ b/events/event-def2/Cargo.toml
@@ -4,7 +4,7 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [features]
 default = ["std"]
diff --git a/flipper/Cargo.toml b/flipper/Cargo.toml
index 6de3f9da..03556314 100644
--- a/flipper/Cargo.toml
+++ b/flipper/Cargo.toml
@@ -1,15 +1,15 @@
 [package]
 name = "flipper"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [dev-dependencies]
-ink_e2e = { version = "5.0.0" }
+ink_e2e = { version = "5.1.0" }
 hex = { version = "0.4.3" }
 
 [lib]
diff --git a/flipper/lib.rs b/flipper/lib.rs
index d2eb93ed..3730b8e2 100644
--- a/flipper/lib.rs
+++ b/flipper/lib.rs
@@ -131,7 +131,7 @@ pub mod flipper {
         /// # node process for each test.
         /// $ export CONTRACTS_NODE_URL=ws://127.0.0.1:9944
         ///
-        /// $ export CONTRACT_HEX=0x2c75f0aa09dbfbfd49e6286a0f2edd3b4913f04a58b13391c79e96782f5713e3
+        /// $ export CONTRACT_ADDR_HEX=0x2c75f0aa09dbfbfd49e6286a0f2edd3b4913f04a58b13391c79e96782f5713e3
         /// $ cargo test --features e2e-tests e2e_test_deployed_contract -- --ignored
         /// ```
         ///
@@ -150,14 +150,19 @@ pub mod flipper {
             let acc_id = hex::decode(addr).unwrap();
             let acc_id = AccountId::try_from(&acc_id[..]).unwrap();
 
+            use std::str::FromStr;
+            let suri = ink_e2e::subxt_signer::SecretUri::from_str("//Alice").unwrap();
+            let caller = ink_e2e::Keypair::from_uri(&suri).unwrap();
+
             // when
-            // Invoke `Flipper::get()` from Bob's account
+            // Invoke `Flipper::get()` from `caller`'s account
             let call_builder = ink_e2e::create_call_builder::<Flipper>(acc_id);
             let get = call_builder.get();
-            let get_res = client.call(&ink_e2e::bob(), &get).dry_run().await?;
+            let get_res = client.call(&caller, &get).dry_run().await?;
 
             // then
-            assert!(matches!(get_res.return_value(), true));
+            assert_eq!(get_res.return_value(), true);
+
             Ok(())
         }
     }
diff --git a/incrementer/Cargo.toml b/incrementer/Cargo.toml
index 542ba069..247cbc43 100644
--- a/incrementer/Cargo.toml
+++ b/incrementer/Cargo.toml
@@ -1,12 +1,12 @@
 [package]
 name = "incrementer"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [lib]
 path = "lib.rs"
diff --git a/lazyvec/Cargo.toml b/lazyvec/Cargo.toml
index bd32ff07..e8e0e407 100755
--- a/lazyvec/Cargo.toml
+++ b/lazyvec/Cargo.toml
@@ -1,15 +1,15 @@
 [package]
-name = "lazyvec-integration-tests"
-version = "5.0.0"
+name = "lazyvec"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [dev-dependencies]
-ink_e2e = { version = "5.0.0" }
+ink_e2e = { version = "5.1.0" }
 
 [lib]
 path = "lib.rs"
diff --git a/lazyvec/lib.rs b/lazyvec/lib.rs
index 7c146808..8c520680 100755
--- a/lazyvec/lib.rs
+++ b/lazyvec/lib.rs
@@ -3,7 +3,7 @@
 #![cfg_attr(not(feature = "std"), no_std, no_main)]
 
 #[ink::contract]
-mod lazyvec_integration_tests {
+mod lazyvec {
     use ink::{
         prelude::vec::Vec,
         storage::StorageVec,
@@ -103,11 +103,7 @@ mod lazyvec_integration_tests {
             // given
             let mut constructor = LazyVectorRef::default();
             let contract = client
-                .instantiate(
-                    "lazyvec-integration-tests",
-                    &ink_e2e::alice(),
-                    &mut constructor,
-                )
+                .instantiate("lazyvec", &ink_e2e::alice(), &mut constructor)
                 .submit()
                 .await
                 .expect("instantiate failed");
diff --git a/mapping/Cargo.toml b/mapping/Cargo.toml
index f7eebafa..767fe080 100755
--- a/mapping/Cargo.toml
+++ b/mapping/Cargo.toml
@@ -1,15 +1,15 @@
 [package]
-name = "mapping-integration-tests"
-version = "5.0.0"
+name = "mapping"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [dev-dependencies]
-ink_e2e = { version = "5.0.0" }
+ink_e2e = { version = "5.1.0" }
 
 [lib]
 path = "lib.rs"
diff --git a/mapping/lib.rs b/mapping/lib.rs
index ccf07cf8..47caf9b8 100755
--- a/mapping/lib.rs
+++ b/mapping/lib.rs
@@ -3,7 +3,7 @@
 #![cfg_attr(not(feature = "std"), no_std, no_main)]
 
 #[ink::contract]
-mod mapping_integration_tests {
+mod mapping {
     use ink::{
         prelude::{
             string::String,
@@ -154,11 +154,7 @@ mod mapping_integration_tests {
             // given
             let mut constructor = MappingsRef::new();
             let contract = client
-                .instantiate(
-                    "mapping-integration-tests",
-                    &ink_e2e::alice(),
-                    &mut constructor,
-                )
+                .instantiate("mapping", &ink_e2e::alice(), &mut constructor)
                 .submit()
                 .await
                 .expect("instantiate failed");
@@ -194,11 +190,7 @@ mod mapping_integration_tests {
             // given
             let mut constructor = MappingsRef::new();
             let contract = client
-                .instantiate(
-                    "mapping-integration-tests",
-                    &ink_e2e::bob(),
-                    &mut constructor,
-                )
+                .instantiate("mapping", &ink_e2e::bob(), &mut constructor)
                 .submit()
                 .await
                 .expect("instantiate failed");
@@ -231,11 +223,7 @@ mod mapping_integration_tests {
             // given
             let mut constructor = MappingsRef::new();
             let contract = client
-                .instantiate(
-                    "mapping-integration-tests",
-                    &ink_e2e::charlie(),
-                    &mut constructor,
-                )
+                .instantiate("mapping", &ink_e2e::charlie(), &mut constructor)
                 .submit()
                 .await
                 .expect("instantiate failed");
@@ -280,11 +268,7 @@ mod mapping_integration_tests {
             // given
             let mut constructor = MappingsRef::new();
             let contract = client
-                .instantiate(
-                    "mapping-integration-tests",
-                    &ink_e2e::dave(),
-                    &mut constructor,
-                )
+                .instantiate("mapping", &ink_e2e::dave(), &mut constructor)
                 .submit()
                 .await
                 .expect("instantiate failed");
@@ -326,11 +310,7 @@ mod mapping_integration_tests {
             // given
             let mut constructor = MappingsRef::new();
             let contract = client
-                .instantiate(
-                    "mapping-integration-tests",
-                    &ink_e2e::eve(),
-                    &mut constructor,
-                )
+                .instantiate("mapping", &ink_e2e::eve(), &mut constructor)
                 .submit()
                 .await
                 .expect("instantiate failed");
@@ -375,11 +355,7 @@ mod mapping_integration_tests {
             // given
             let mut constructor = MappingsRef::new();
             let contract = client
-                .instantiate(
-                    "mapping-integration-tests",
-                    &ink_e2e::ferdie(),
-                    &mut constructor,
-                )
+                .instantiate("mapping", &ink_e2e::ferdie(), &mut constructor)
                 .submit()
                 .await
                 .expect("instantiate failed");
@@ -400,7 +376,7 @@ mod mapping_integration_tests {
                 .await?
                 .return_value();
             let received_insert_result =
-                Err(crate::mapping_integration_tests::ContractError::ValueTooLarge);
+                Err(crate::mapping::ContractError::ValueTooLarge);
             assert_eq!(received_insert_result, expected_insert_result);
 
             // then there should be 4 entries (that's what fits into the 256kb buffer)
diff --git a/multi-contract-caller/Cargo.toml b/multi-contract-caller/Cargo.toml
index 4665182a..3d7ea172 100644
--- a/multi-contract-caller/Cargo.toml
+++ b/multi-contract-caller/Cargo.toml
@@ -1,19 +1,19 @@
 [package]
 name = "multi-contract-caller"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 adder = { path = "adder", default-features = false, features = ["ink-as-dependency"] }
 subber = { path = "subber", default-features = false, features = ["ink-as-dependency"] }
 accumulator = { path = "accumulator", default-features = false, features = ["ink-as-dependency"] }
 
 [dev-dependencies]
-ink_e2e = { version = "5.0.0" }
+ink_e2e = { version = "5.1.0" }
 
 [lib]
 path = "lib.rs"
diff --git a/multi-contract-caller/accumulator/Cargo.toml b/multi-contract-caller/accumulator/Cargo.toml
index 37b42c67..4f570f5f 100644
--- a/multi-contract-caller/accumulator/Cargo.toml
+++ b/multi-contract-caller/accumulator/Cargo.toml
@@ -1,11 +1,11 @@
 [package]
 name = "accumulator"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 [lib]
 path = "lib.rs"
 
diff --git a/multi-contract-caller/adder/Cargo.toml b/multi-contract-caller/adder/Cargo.toml
index 214d4026..3c6f1100 100644
--- a/multi-contract-caller/adder/Cargo.toml
+++ b/multi-contract-caller/adder/Cargo.toml
@@ -1,11 +1,11 @@
 [package]
 name = "adder"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 accumulator = { path = "../accumulator", default-features = false, features = ["ink-as-dependency"] }
 
diff --git a/multi-contract-caller/subber/Cargo.toml b/multi-contract-caller/subber/Cargo.toml
index 0779d509..2b8d683f 100644
--- a/multi-contract-caller/subber/Cargo.toml
+++ b/multi-contract-caller/subber/Cargo.toml
@@ -1,11 +1,11 @@
 [package]
 name = "subber"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 accumulator = { path = "../accumulator", default-features = false, features = ["ink-as-dependency"] }
 
diff --git a/multisig/Cargo.toml b/multisig/Cargo.toml
index 28b0b768..6731967a 100755
--- a/multisig/Cargo.toml
+++ b/multisig/Cargo.toml
@@ -1,12 +1,12 @@
 [package]
 name = "multisig"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [lib]
 path = "lib.rs"
diff --git a/payment-channel/Cargo.toml b/payment-channel/Cargo.toml
index 70d7b4cd..997dc257 100755
--- a/payment-channel/Cargo.toml
+++ b/payment-channel/Cargo.toml
@@ -1,12 +1,12 @@
 [package]
 name = "payment_channel"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [dev-dependencies]
 hex-literal = { version = "0.4.1" }
diff --git a/psp22-extension/Cargo.toml b/psp22-extension/Cargo.toml
index de0d23b3..ca264390 100755
--- a/psp22-extension/Cargo.toml
+++ b/psp22-extension/Cargo.toml
@@ -1,12 +1,12 @@
 [package]
 name = "psp22_extension"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [lib]
 path = "lib.rs"
diff --git a/rand-extension/Cargo.toml b/rand-extension/Cargo.toml
index ecbaa68d..cf2846a7 100755
--- a/rand-extension/Cargo.toml
+++ b/rand-extension/Cargo.toml
@@ -1,12 +1,12 @@
 [package]
 name = "rand_extension"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [lib]
 path = "lib.rs"
diff --git a/runtime-call-contract/Cargo.toml b/runtime-call-contract/Cargo.toml
new file mode 100644
index 00000000..152f1c0d
--- /dev/null
+++ b/runtime-call-contract/Cargo.toml
@@ -0,0 +1,49 @@
+[workspace]
+members = ["sandbox-runtime", "traits"]
+
+[workspace.package]
+authors = ["Use Ink <ink@use.ink>"]
+edition = "2021"
+homepage = "https://use.ink"
+keywords = ["wasm", "ink", "webassembly", "blockchain", "edsl"]
+license = "Apache-2.0"
+repository = "https://github.com/use-ink/ink"
+
+[workspace.dependencies]
+frame-support = { version = "32.0.0", default-features = false }
+frame-system = { version = "32.0.0", default-features = false }
+pallet-contracts = { version = "31.0.0", default-features = false }
+sp-runtime = { version = "35.0.0", default-features = false }
+codec = { package = "parity-scale-codec", version =  "3.6.9", default-features = false }
+scale-info = { version = "2.11.1", default-features = false }
+
+[package]
+name = "runtime-call-contract"
+version = "5.1.0"
+authors = ["Use Ink <ink@use.ink>"]
+edition = "2021"
+publish = false
+
+[dependencies]
+ink = { version = "5.1.0", default-features = false }
+flipper-traits = { path = "traits", default-features = false }
+
+[dev-dependencies]
+ink_e2e = { version = "5.1.0", features = ["sandbox"] }
+sandbox-runtime = { path = "sandbox-runtime", default-features = false }
+scale-value = "0.14.1"
+# can't use workspace dependency because of `cargo-contract` build not
+# working with workspace dependencies
+frame-support = { version = "32.0.0", default-features = false }
+
+[lib]
+path = "lib.rs"
+
+[features]
+default = ["std"]
+std = [
+    "ink/std",
+    "sandbox-runtime/std",
+    "flipper-traits/std",
+]
+ink-as-dependency = []
diff --git a/runtime-call-contract/e2e_tests.rs b/runtime-call-contract/e2e_tests.rs
new file mode 100644
index 00000000..f4b73396
--- /dev/null
+++ b/runtime-call-contract/e2e_tests.rs
@@ -0,0 +1,61 @@
+use super::{
+    Flipper,
+    FlipperRef,
+};
+use ink_e2e::{
+    ChainBackend,
+    ContractsBackend,
+};
+
+type E2EResult<T> = Result<T, Box<dyn std::error::Error>>;
+
+/// Just instantiate a contract using non-default runtime.
+#[ink_e2e::test(backend(runtime_only(sandbox = sandbox_runtime::ContractCallerSandbox)))]
+async fn instantiate_and_get<Client: E2EBackend>(mut client: Client) -> E2EResult<()> {
+    use flipper_traits::Flip;
+
+    let initial_value = false;
+    let mut constructor = FlipperRef::new(initial_value);
+
+    let contract = client
+        .instantiate("runtime-call-contract", &ink_e2e::alice(), &mut constructor)
+        .submit()
+        .await
+        .expect("instantiate failed");
+
+    let mut call_builder = contract.call_builder::<Flipper>();
+    let flip_dry_run = client
+        .call(&ink_e2e::bob(), &call_builder.flip())
+        .dry_run()
+        .await?;
+    let gas_required = flip_dry_run.exec_result.gas_required;
+
+    // call pallet dispatchable
+    client
+        .runtime_call(
+            &ink_e2e::alice(),
+            "ContractCaller",
+            "contract_call_flip",
+            vec![
+                scale_value::Value::from_bytes(contract.account_id),
+                scale_value::serde::to_value(frame_support::weights::Weight::from_parts(
+                    gas_required.ref_time(),
+                    gas_required.proof_size(),
+                ))
+                .unwrap(),
+                scale_value::serde::to_value(None::<u128>).unwrap(),
+            ],
+        )
+        .await
+        .expect("runtime call failed");
+
+    // now check that the flip was executed via the pallet
+    let get_result = client
+        .call(&ink_e2e::alice(), &call_builder.get())
+        .dry_run()
+        .await?;
+
+    assert_eq!(get_result.return_value(), !initial_value);
+
+    Ok(())
+}
diff --git a/runtime-call-contract/lib.rs b/runtime-call-contract/lib.rs
new file mode 100644
index 00000000..58435745
--- /dev/null
+++ b/runtime-call-contract/lib.rs
@@ -0,0 +1,36 @@
+#![cfg_attr(not(feature = "std"), no_std, no_main)]
+
+pub use flipper::{
+    Flipper,
+    FlipperRef,
+};
+
+#[ink::contract]
+mod flipper {
+    #[ink(storage)]
+    pub struct Flipper {
+        value: bool,
+    }
+
+    impl Flipper {
+        #[ink(constructor)]
+        pub fn new(init_value: bool) -> Self {
+            Self { value: init_value }
+        }
+    }
+
+    impl flipper_traits::Flip for Flipper {
+        #[ink(message)]
+        fn flip(&mut self) {
+            self.value = !self.value;
+        }
+
+        #[ink(message)]
+        fn get(&self) -> bool {
+            self.value
+        }
+    }
+}
+
+#[cfg(test)]
+mod e2e_tests;
diff --git a/runtime-call-contract/sandbox-runtime/Cargo.toml b/runtime-call-contract/sandbox-runtime/Cargo.toml
new file mode 100644
index 00000000..fabffd81
--- /dev/null
+++ b/runtime-call-contract/sandbox-runtime/Cargo.toml
@@ -0,0 +1,23 @@
+[package]
+name = "sandbox-runtime"
+version = "0.1.0"
+authors.workspace = true
+edition.workspace = true
+homepage.workspace = true
+keywords.workspace = true
+license.workspace = true
+repository.workspace = true
+
+[dependencies]
+ink_sandbox = { path = "../../../../crates/e2e/sandbox" }
+pallet-contract-caller = { path = "pallet-contract-caller", default-features = false }
+frame-support = { workspace = true }
+frame-system = { workspace = true }
+codec = { workspace = true }
+scale-info = { workspace = true }
+
+[features]
+default = ["std"]
+std = [
+    "pallet-contract-caller/std",
+]
diff --git a/runtime-call-contract/sandbox-runtime/pallet-contract-caller/Cargo.toml b/runtime-call-contract/sandbox-runtime/pallet-contract-caller/Cargo.toml
new file mode 100644
index 00000000..2fd03162
--- /dev/null
+++ b/runtime-call-contract/sandbox-runtime/pallet-contract-caller/Cargo.toml
@@ -0,0 +1,37 @@
+[package]
+name = "pallet-contract-caller"
+version = "0.1.0"
+description = "Demonstrate calling an ink! contract from a pallet"
+authors = ["Use Ink <ink@use.ink>"]
+homepage = "https://substrate.io"
+edition.workspace = true
+license = "MIT-0"
+publish = false
+repository = "https://github.com/use-ink/ink"
+
+[package.metadata.docs.rs]
+targets = ["x86_64-unknown-linux-gnu"]
+
+[dependencies]
+codec = { workspace = true, default-features = false, features = ["derive"] }
+scale-info = { workspace = true, default-features = false, features = ["derive"] }
+frame-support = { workspace = true, default-features = false }
+frame-system = { workspace = true, default-features = false }
+sp-runtime = { workspace = true, default-features = false }
+
+pallet-contracts = { workspace = true, default-features = false }
+flipper-traits = { path = "../../traits", default-features = false }
+ink = { version = "5.1.0", features = ["no-panic-handler", "no-allocator"] }
+
+[features]
+default = ["std"]
+std = [
+    "codec/std",
+    "frame-support/std",
+    "frame-system/std",
+    "sp-runtime/std",
+    "scale-info/std",
+    "pallet-contracts/std",
+    "ink/std"
+]
+try-runtime = []
diff --git a/runtime-call-contract/sandbox-runtime/pallet-contract-caller/src/executor.rs b/runtime-call-contract/sandbox-runtime/pallet-contract-caller/src/executor.rs
new file mode 100644
index 00000000..214cf5fd
--- /dev/null
+++ b/runtime-call-contract/sandbox-runtime/pallet-contract-caller/src/executor.rs
@@ -0,0 +1,59 @@
+use crate::{
+    AccountIdOf,
+    BalanceOf,
+};
+use frame_support::pallet_prelude::Weight;
+use ink::env::{
+    call::{
+        ExecutionInput,
+        Executor,
+    },
+    Environment,
+};
+
+pub struct PalletContractsExecutor<E: Environment, Runtime: pallet_contracts::Config> {
+    pub origin: AccountIdOf<Runtime>,
+    pub contract: AccountIdOf<Runtime>,
+    pub value: BalanceOf<Runtime>,
+    pub gas_limit: Weight,
+    pub storage_deposit_limit: Option<BalanceOf<Runtime>>,
+    pub marker: core::marker::PhantomData<E>,
+}
+
+impl<E, R> Executor<E> for PalletContractsExecutor<E, R>
+where
+    E: Environment,
+    R: pallet_contracts::Config,
+{
+    type Error = sp_runtime::DispatchError;
+
+    fn exec<Args, Output>(
+        &self,
+        input: &ExecutionInput<Args>,
+    ) -> Result<ink::MessageResult<Output>, Self::Error>
+    where
+        Args: codec::Encode,
+        Output: codec::Decode,
+    {
+        let data = codec::Encode::encode(&input);
+
+        let result = pallet_contracts::Pallet::<R>::bare_call(
+            self.origin.clone(),
+            self.contract.clone(),
+            self.value,
+            self.gas_limit,
+            self.storage_deposit_limit,
+            data,
+            pallet_contracts::DebugInfo::UnsafeDebug,
+            pallet_contracts::CollectEvents::Skip,
+            pallet_contracts::Determinism::Enforced,
+        );
+
+        let output = result.result?.data;
+        let result = codec::Decode::decode(&mut &output[..]).map_err(|_| {
+            sp_runtime::DispatchError::Other("Failed to decode contract output")
+        })?;
+
+        Ok(result)
+    }
+}
diff --git a/runtime-call-contract/sandbox-runtime/pallet-contract-caller/src/lib.rs b/runtime-call-contract/sandbox-runtime/pallet-contract-caller/src/lib.rs
new file mode 100644
index 00000000..cf7abdd4
--- /dev/null
+++ b/runtime-call-contract/sandbox-runtime/pallet-contract-caller/src/lib.rs
@@ -0,0 +1,76 @@
+//! # Contract Caller
+//!
+//! Demonstrates calling into an `ink!` contract from a pallet.
+
+#![cfg_attr(not(feature = "std"), no_std)]
+
+mod executor;
+
+use frame_support::{
+    pallet_prelude::Weight,
+    traits::fungible::Inspect,
+};
+pub use pallet::*;
+
+type AccountIdOf<R> = <R as frame_system::Config>::AccountId;
+type BalanceOf<R> = <<R as pallet_contracts::Config>::Currency as Inspect<
+    <R as frame_system::Config>::AccountId,
+>>::Balance;
+
+#[frame_support::pallet]
+pub mod pallet {
+    use super::*;
+    use flipper_traits::Flip;
+    use frame_support::{
+        pallet_prelude::*,
+        traits::fungible::Inspect,
+    };
+    use frame_system::pallet_prelude::*;
+
+    #[pallet::pallet]
+    pub struct Pallet<T>(_);
+
+    #[pallet::config]
+    pub trait Config: frame_system::Config + pallet_contracts::Config {}
+
+    #[pallet::error]
+    pub enum Error<T> {}
+
+    #[pallet::call]
+    impl<T: Config> Pallet<T>
+    where
+        [u8; 32]: From<<T as frame_system::Config>::AccountId>,
+        <<T as pallet_contracts::Config>::Currency as Inspect<
+            <T as frame_system::Config>::AccountId,
+        >>::Balance: From<u128>,
+    {
+        /// Call the flip method on the contract at the given `contract` account.
+        #[pallet::call_index(0)]
+        #[pallet::weight(<T::WeightInfo as pallet_contracts::WeightInfo>::call().saturating_add(*gas_limit))]
+        pub fn contract_call_flip(
+            origin: OriginFor<T>,
+            contract: AccountIdOf<T>,
+            gas_limit: Weight,
+            storage_deposit_limit: Option<BalanceOf<T>>,
+        ) -> DispatchResult {
+            let who = ensure_signed(origin)?;
+
+            let executor =
+                executor::PalletContractsExecutor::<ink::env::DefaultEnvironment, T> {
+                    origin: who.clone(),
+                    contract: contract.clone(),
+                    value: 0.into(),
+                    gas_limit,
+                    storage_deposit_limit,
+                    marker: Default::default(),
+                };
+
+            let mut flipper = ink::message_builder!(Flip);
+            let result = flipper.flip().exec(&executor)?;
+
+            assert!(result.is_ok());
+
+            Ok(())
+        }
+    }
+}
diff --git a/runtime-call-contract/sandbox-runtime/src/lib.rs b/runtime-call-contract/sandbox-runtime/src/lib.rs
new file mode 100644
index 00000000..78a39d89
--- /dev/null
+++ b/runtime-call-contract/sandbox-runtime/src/lib.rs
@@ -0,0 +1,11 @@
+//! # Contract Caller
+//!
+//! Demonstrates calling into an `ink!` contract from a pallet.
+
+#![cfg_attr(not(feature = "std"), no_std)]
+
+ink_sandbox::create_sandbox!(ContractCallerSandbox, ContractCallerSandboxRuntime, (), (), {
+    ContractCaller: pallet_contract_caller,
+});
+
+impl pallet_contract_caller::Config for ContractCallerSandboxRuntime {}
diff --git a/runtime-call-contract/traits/Cargo.toml b/runtime-call-contract/traits/Cargo.toml
new file mode 100644
index 00000000..101fd590
--- /dev/null
+++ b/runtime-call-contract/traits/Cargo.toml
@@ -0,0 +1,18 @@
+[package]
+name = "flipper-traits"
+version = "5.1.0"
+authors = ["Use Ink <ink@use.ink>"]
+edition = "2021"
+publish = false
+
+[dependencies]
+ink = { version = "5.1.0", default-features = false }
+
+[lib]
+path = "lib.rs"
+
+[features]
+default = ["std"]
+std = [
+    "ink/std",
+]
diff --git a/runtime-call-contract/traits/lib.rs b/runtime-call-contract/traits/lib.rs
new file mode 100644
index 00000000..294077a1
--- /dev/null
+++ b/runtime-call-contract/traits/lib.rs
@@ -0,0 +1,14 @@
+#![cfg_attr(not(feature = "std"), no_std, no_main)]
+
+/// Allows to flip and get a bool value.
+#[ink::trait_definition]
+pub trait Flip {
+    /// Flip the value of the stored `bool` from `true`
+    /// to `false` and vice versa.
+    #[ink(message)]
+    fn flip(&mut self);
+
+    /// Returns the current value of our `bool`.
+    #[ink(message)]
+    fn get(&self) -> bool;
+}
diff --git a/static-buffer/Cargo.toml b/static-buffer/Cargo.toml
index 6a2abbd6..f88ff65c 100644
--- a/static-buffer/Cargo.toml
+++ b/static-buffer/Cargo.toml
@@ -1,15 +1,15 @@
 [package]
 name = "static-buffer"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [dev-dependencies]
-ink_e2e = { version = "5.0.0" }
+ink_e2e = { version = "5.1.0" }
 
 [lib]
 path = "lib.rs"
diff --git a/trait-dyn-cross-contract-calls/Cargo.toml b/trait-dyn-cross-contract-calls/Cargo.toml
index f442fe0c..77dc1219 100644
--- a/trait-dyn-cross-contract-calls/Cargo.toml
+++ b/trait-dyn-cross-contract-calls/Cargo.toml
@@ -1,17 +1,17 @@
 [package]
 name = "trait-incrementer-caller"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 dyn-traits = { path = "./traits", default-features = false }
 
 [dev-dependencies]
-ink_e2e = { version = "5.0.0" }
+ink_e2e = { version = "5.1.0" }
 trait-incrementer = { path = "./contracts/incrementer", default-features = false, features = ["ink-as-dependency"] }
 
 [lib]
diff --git a/trait-dyn-cross-contract-calls/contracts/incrementer/Cargo.toml b/trait-dyn-cross-contract-calls/contracts/incrementer/Cargo.toml
index 58d51c8c..64db9bfc 100644
--- a/trait-dyn-cross-contract-calls/contracts/incrementer/Cargo.toml
+++ b/trait-dyn-cross-contract-calls/contracts/incrementer/Cargo.toml
@@ -1,12 +1,12 @@
 [package]
 name = "trait-incrementer"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 dyn-traits = { path = "../../traits", default-features = false }
 
diff --git a/trait-dyn-cross-contract-calls/traits/Cargo.toml b/trait-dyn-cross-contract-calls/traits/Cargo.toml
index 00eb9b2f..1685ae46 100644
--- a/trait-dyn-cross-contract-calls/traits/Cargo.toml
+++ b/trait-dyn-cross-contract-calls/traits/Cargo.toml
@@ -1,12 +1,12 @@
 [package]
 name = "dyn-traits"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [lib]
 path = "lib.rs"
@@ -15,4 +15,4 @@ path = "lib.rs"
 default = ["std"]
 std = [
     "ink/std",
-]
\ No newline at end of file
+]
diff --git a/trait-erc20/Cargo.toml b/trait-erc20/Cargo.toml
index 0b9205ac..56d9d63d 100644
--- a/trait-erc20/Cargo.toml
+++ b/trait-erc20/Cargo.toml
@@ -1,12 +1,12 @@
 [package]
 name = "trait_erc20"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [lib]
 path = "lib.rs"
diff --git a/trait-flipper/Cargo.toml b/trait-flipper/Cargo.toml
index 8ef52455..b46735e2 100644
--- a/trait-flipper/Cargo.toml
+++ b/trait-flipper/Cargo.toml
@@ -1,12 +1,12 @@
 [package]
 name = "trait_flipper"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [lib]
 path = "lib.rs"
diff --git a/trait-incrementer/Cargo.toml b/trait-incrementer/Cargo.toml
index 6b87fc69..0a047617 100644
--- a/trait-incrementer/Cargo.toml
+++ b/trait-incrementer/Cargo.toml
@@ -1,12 +1,12 @@
 [package]
 name = "trait-incrementer"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 traits = { path = "./traits", default-features = false }
 
diff --git a/trait-incrementer/traits/Cargo.toml b/trait-incrementer/traits/Cargo.toml
index daa725a9..4feb52b3 100644
--- a/trait-incrementer/traits/Cargo.toml
+++ b/trait-incrementer/traits/Cargo.toml
@@ -1,12 +1,12 @@
 [package]
 name = "traits"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [lib]
 name = "traits"
diff --git a/upgradeable-contracts/delegator/Cargo.toml b/upgradeable-contracts/delegator/Cargo.toml
index 2a87568c..0c6f0514 100644
--- a/upgradeable-contracts/delegator/Cargo.toml
+++ b/upgradeable-contracts/delegator/Cargo.toml
@@ -1,17 +1,17 @@
 [package]
 name = "delegator"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 delegatee = { path = "delegatee", default-features = false, features = ["ink-as-dependency"] }
 delegatee2 = { path = "delegatee2", default-features = false, features = ["ink-as-dependency"] }
 
 [dev-dependencies]
-ink_e2e = { version = "5.0.0" }
+ink_e2e = { version = "5.1.0" }
 
 [lib]
 path = "lib.rs"
diff --git a/upgradeable-contracts/delegator/delegatee/Cargo.toml b/upgradeable-contracts/delegator/delegatee/Cargo.toml
index 617522ac..56d26758 100644
--- a/upgradeable-contracts/delegator/delegatee/Cargo.toml
+++ b/upgradeable-contracts/delegator/delegatee/Cargo.toml
@@ -1,12 +1,12 @@
 [package]
 name = "delegatee"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [lib]
 path = "lib.rs"
diff --git a/upgradeable-contracts/delegator/delegatee2/Cargo.toml b/upgradeable-contracts/delegator/delegatee2/Cargo.toml
index 33629470..cf7c873b 100644
--- a/upgradeable-contracts/delegator/delegatee2/Cargo.toml
+++ b/upgradeable-contracts/delegator/delegatee2/Cargo.toml
@@ -1,12 +1,12 @@
 [package]
 name = "delegatee2"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [lib]
 path = "lib.rs"
diff --git a/upgradeable-contracts/set-code-hash-migration/Cargo.toml b/upgradeable-contracts/set-code-hash-migration/Cargo.toml
index e3d72691..be8024bd 100644
--- a/upgradeable-contracts/set-code-hash-migration/Cargo.toml
+++ b/upgradeable-contracts/set-code-hash-migration/Cargo.toml
@@ -1,18 +1,18 @@
 [package]
 name = "incrementer"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 migration = { path = "./migration", default-features = false, features = ["ink-as-dependency"] }
 updated-incrementer = { path = "./updated-incrementer", default-features = false, features = ["ink-as-dependency"] }
 
 [dev-dependencies]
-ink_e2e = { version = "5.0.0" }
+ink_e2e = { version = "5.1.0" }
 
 [lib]
 path = "lib.rs"
diff --git a/upgradeable-contracts/set-code-hash-migration/migration/Cargo.toml b/upgradeable-contracts/set-code-hash-migration/migration/Cargo.toml
index 7fa0f4f7..a9d918ec 100644
--- a/upgradeable-contracts/set-code-hash-migration/migration/Cargo.toml
+++ b/upgradeable-contracts/set-code-hash-migration/migration/Cargo.toml
@@ -1,12 +1,12 @@
 [package]
 name = "migration"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [lib]
 path = "lib.rs"
diff --git a/upgradeable-contracts/set-code-hash-migration/updated-incrementer/Cargo.toml b/upgradeable-contracts/set-code-hash-migration/updated-incrementer/Cargo.toml
index 7186e3f8..05590ada 100644
--- a/upgradeable-contracts/set-code-hash-migration/updated-incrementer/Cargo.toml
+++ b/upgradeable-contracts/set-code-hash-migration/updated-incrementer/Cargo.toml
@@ -1,12 +1,12 @@
 [package]
 name = "updated-incrementer"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [lib]
 path = "lib.rs"
diff --git a/upgradeable-contracts/set-code-hash/Cargo.toml b/upgradeable-contracts/set-code-hash/Cargo.toml
index 021d0365..705455f2 100644
--- a/upgradeable-contracts/set-code-hash/Cargo.toml
+++ b/upgradeable-contracts/set-code-hash/Cargo.toml
@@ -1,15 +1,15 @@
 [package]
 name = "incrementer"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [dev-dependencies]
-ink_e2e = { version = "5.0.0" }
+ink_e2e = { version = "5.1.0" }
 updated-incrementer = { path = "updated-incrementer", default-features = false, features = ["ink-as-dependency"] }
 
 [lib]
diff --git a/upgradeable-contracts/set-code-hash/updated-incrementer/Cargo.toml b/upgradeable-contracts/set-code-hash/updated-incrementer/Cargo.toml
index 7186e3f8..05590ada 100644
--- a/upgradeable-contracts/set-code-hash/updated-incrementer/Cargo.toml
+++ b/upgradeable-contracts/set-code-hash/updated-incrementer/Cargo.toml
@@ -1,12 +1,12 @@
 [package]
 name = "updated-incrementer"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [lib]
 path = "lib.rs"
diff --git a/vesting/Cargo.toml b/vesting/Cargo.toml
index 78854270..8e9c45a0 100755
--- a/vesting/Cargo.toml
+++ b/vesting/Cargo.toml
@@ -1,11 +1,11 @@
 [package]
 name = "vesting"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [dev-dependencies]
 
diff --git a/wildcard-selector/Cargo.toml b/wildcard-selector/Cargo.toml
index e7e1240b..b3e9d0bf 100644
--- a/wildcard-selector/Cargo.toml
+++ b/wildcard-selector/Cargo.toml
@@ -1,15 +1,15 @@
 [package]
 name = "wildcard-selector"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
 
 [dependencies]
-ink = { version = "5.0.0", default-features = false }
+ink = { version = "5.1.0", default-features = false }
 
 [dev-dependencies]
-ink_e2e = { version = "5.0.0" }
+ink_e2e = { version = "5.1.0" }
 
 [lib]
 path = "lib.rs"
diff --git a/workspace-contracts/Cargo.toml b/workspace-contracts/Cargo.toml
index 8e120b69..91f4fd9e 100644
--- a/workspace-contracts/Cargo.toml
+++ b/workspace-contracts/Cargo.toml
@@ -4,5 +4,5 @@ exclude = [".cargo", "target"]
 resolver = "2"
 
 [workspace.dependencies]
-ink = { version = "5.0.0", default-features = false }
-ink_e2e = "5.0.0"
+ink = { version = "5.1.0", default-features = false }
+ink_e2e = "5.1.0"
diff --git a/workspace-contracts/flipper/Cargo.toml b/workspace-contracts/flipper/Cargo.toml
index 47a5b1de..e7f52d67 100644
--- a/workspace-contracts/flipper/Cargo.toml
+++ b/workspace-contracts/flipper/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "flipper"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false
diff --git a/workspace-contracts/incrementer/Cargo.toml b/workspace-contracts/incrementer/Cargo.toml
index b7e5ec00..843afeab 100644
--- a/workspace-contracts/incrementer/Cargo.toml
+++ b/workspace-contracts/incrementer/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "incrementer"
-version = "5.0.0"
+version = "5.1.0"
 authors = ["Use Ink <ink@use.ink>"]
 edition = "2021"
 publish = false