diff --git a/examples/abigen.rs b/examples/abigen.rs
index e8aeb84c..7506722f 100644
--- a/examples/abigen.rs
+++ b/examples/abigen.rs
@@ -5,7 +5,7 @@ use starknet::{
     contract::abi::ContractAddress,
     core::{chain_id, types::FieldElement},
     macros::abigen,
-    providers::{Provider, SequencerGatewayProvider},
+    providers::SequencerGatewayProvider,
     signers::{LocalWallet, SigningKey},
 };
 
diff --git a/starknet-contract/src/abi/cairo_types/types/starknet.rs b/starknet-contract/src/abi/cairo_types/types/starknet.rs
index f191f682..6ce7aff4 100644
--- a/starknet-contract/src/abi/cairo_types/types/starknet.rs
+++ b/starknet-contract/src/abi/cairo_types/types/starknet.rs
@@ -14,6 +14,12 @@ impl From<FieldElement> for ContractAddress {
     }
 }
 
+impl From<ContractAddress> for FieldElement {
+    fn from(item: ContractAddress) -> Self {
+        item.0
+    }
+}
+
 impl CairoType for ContractAddress {
     type RustType = Self;
 
@@ -36,6 +42,12 @@ impl From<FieldElement> for ClassHash {
     }
 }
 
+impl From<ClassHash> for FieldElement {
+    fn from(item: ClassHash) -> Self {
+        item.0
+    }
+}
+
 impl CairoType for ClassHash {
     type RustType = Self;
 
@@ -58,6 +70,12 @@ impl From<FieldElement> for EthAddress {
     }
 }
 
+impl From<EthAddress> for FieldElement {
+    fn from(item: EthAddress) -> Self {
+        item.0
+    }
+}
+
 impl CairoType for EthAddress {
     type RustType = Self;