diff --git a/crates/katana/core/src/sequencer.rs b/crates/katana/core/src/sequencer.rs
index 11b181959e..970195ace4 100644
--- a/crates/katana/core/src/sequencer.rs
+++ b/crates/katana/core/src/sequencer.rs
@@ -97,7 +97,7 @@ impl<EF: ExecutorFactory> KatanaSequencer<EF> {
     }
 
     pub fn provider(&self) -> &BlockchainProvider<Box<dyn Database>> {
-        &self.backend.blockchain.provider()
+        self.backend.blockchain.provider()
     }
 
     // pub async fn set_storage_at(
diff --git a/crates/katana/rpc/rpc/src/starknet/write.rs b/crates/katana/rpc/rpc/src/starknet/write.rs
index 10f62ffb9b..286f9cf8d2 100644
--- a/crates/katana/rpc/rpc/src/starknet/write.rs
+++ b/crates/katana/rpc/rpc/src/starknet/write.rs
@@ -17,7 +17,7 @@ impl<EF: ExecutorFactory> StarknetApi<EF> {
     ) -> Result<InvokeTxResult, StarknetApiError> {
         self.on_io_blocking_task(move |this| {
             if tx.is_query() {
-                return Err(StarknetApiError::UnsupportedTransactionVersion.into());
+                return Err(StarknetApiError::UnsupportedTransactionVersion);
             }
 
             let tx = tx.into_tx_with_chain_id(this.inner.sequencer.backend().chain_id);
@@ -36,7 +36,7 @@ impl<EF: ExecutorFactory> StarknetApi<EF> {
     ) -> Result<DeclareTxResult, StarknetApiError> {
         self.on_io_blocking_task(move |this| {
             if tx.is_query() {
-                return Err(StarknetApiError::UnsupportedTransactionVersion.into());
+                return Err(StarknetApiError::UnsupportedTransactionVersion);
             }
 
             let tx = tx
@@ -59,7 +59,7 @@ impl<EF: ExecutorFactory> StarknetApi<EF> {
     ) -> Result<DeployAccountTxResult, StarknetApiError> {
         self.on_io_blocking_task(move |this| {
             if tx.is_query() {
-                return Err(StarknetApiError::UnsupportedTransactionVersion.into());
+                return Err(StarknetApiError::UnsupportedTransactionVersion);
             }
 
             let tx = tx.into_tx_with_chain_id(this.inner.sequencer.backend().chain_id);