diff --git a/Cargo.lock b/Cargo.lock
index f40568e9..2a9ddd88 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -693,7 +693,7 @@ dependencies = [
 [[package]]
 name = "seda-common"
 version = "0.0.0"
-source = "git+https://github.com/sedaprotocol/seda-common-rs.git?branch=main#fe04866cbf4b3d673c7290e1fe43901292e2bbcd"
+source = "git+https://github.com/sedaprotocol/seda-common-rs.git?branch=fix/u128-deser-errors#54a5e7737f2e123ca116db45bf10c37745d1b99d"
 dependencies = [
  "base64 0.22.1",
  "cosmwasm-schema",
diff --git a/Cargo.toml b/Cargo.toml
index afe26952..226c8e2f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -34,7 +34,7 @@ k256 = { version = "0.13", default-features = false, features = ["ecdsa"] }
 libfuzzer-sys = "0.4"
 rand = "0.8"
 schemars = { version = "0.8", features = ["semver"] }
-seda-common = { git = "https://github.com/sedaprotocol/seda-common-rs.git", branch = "main" }
+seda-common = { git = "https://github.com/sedaprotocol/seda-common-rs.git", branch = "fix/u128-deser-errors" }
 # leaving this in to make local development easier
 # seda-common = { path = "../seda-common-rs" }
 semver = { version = "1.0", features = ["serde"] }
diff --git a/contract/src/state.rs b/contract/src/state.rs
index 24e3df35..4e4334f9 100644
--- a/contract/src/state.rs
+++ b/contract/src/state.rs
@@ -1,4 +1,4 @@
-use cosmwasm_std::{StdResult, Storage};
+use cosmwasm_std::{StdResult, Storage, Uint128};
 use cw_storage_plus::{Item, Map};
 
 use crate::types::PublicKey;
@@ -17,8 +17,8 @@ pub fn get_seq(store: &dyn Storage, public_key: &PublicKey) -> StdResult<u128> {
     ACCOUNT_SEQ.may_load(store, public_key).map(|x| x.unwrap_or_default())
 }
 
-pub fn inc_get_seq(store: &mut dyn Storage, public_key: &PublicKey) -> StdResult<u128> {
+pub fn inc_get_seq(store: &mut dyn Storage, public_key: &PublicKey) -> StdResult<Uint128> {
     let seq = ACCOUNT_SEQ.may_load(store, public_key)?.unwrap_or_default();
     ACCOUNT_SEQ.save(store, public_key, &(seq + 1))?;
-    Ok(seq)
+    Ok(seq.into())
 }