diff --git a/src/hero_vault/ethereum/contract.rs b/src/hero_vault/ethereum/contract.rs
index 7eed972..f3bb482 100644
--- a/src/hero_vault/ethereum/contract.rs
+++ b/src/hero_vault/ethereum/contract.rs
@@ -141,7 +141,7 @@ pub async fn call_write_function(
     log::debug!("Gas limit: {:?}", tx.gas);
     log::debug!("Network: {}", contract.network.name);
 
-    let pending_tx = match client.send_transaction(tx, None).await {
+    let pending_tx = match client.send_transaction(tx, Some(BlockId::Number((BlockNumber::Latest).into()))).await {
         Ok(pending_tx) => {
             log::debug!("Transaction sent successfully: {:?}", pending_tx.tx_hash());
             log::info!("Transaction sent successfully: {:?}", pending_tx.tx_hash());
diff --git a/src/hero_vault/ethereum/transaction.rs b/src/hero_vault/ethereum/transaction.rs
index b7b355e..e12892e 100644
--- a/src/hero_vault/ethereum/transaction.rs
+++ b/src/hero_vault/ethereum/transaction.rs
@@ -76,7 +76,7 @@ pub async fn send_eth(
         .gas(gas);
     
     // Send the transaction
-    let pending_tx = client.send_transaction(tx, None)
+    let pending_tx = client.send_transaction(tx, Some(BlockId::Number((BlockNumber::Latest).into())))
         .await
         .map_err(|e| CryptoError::SerializationError(format!("Failed to send transaction: {}", e)))?;
     
@@ -118,7 +118,7 @@ pub async fn send_eth_with_provider(
         .gas(gas);
     
     // Send the transaction
-    let pending_tx = client.send_transaction(tx, None)
+    let pending_tx = client.send_transaction(tx, Some(BlockId::Number((BlockNumber::Latest).into())))
         .await
         .map_err(|e| CryptoError::SerializationError(format!("Failed to send transaction: {}", e)))?;