diff --git a/crates/blockifier/src/test_utils/l1_handler.rs b/crates/blockifier/src/test_utils/l1_handler.rs
index a57d08b8b6a..142bf32d52c 100644
--- a/crates/blockifier/src/test_utils/l1_handler.rs
+++ b/crates/blockifier/src/test_utils/l1_handler.rs
@@ -15,7 +15,6 @@ pub fn l1handler_tx(l1_fee: Fee, contract_address: ContractAddress) -> L1Handler
     ];
 
     executable_l1_handler_tx(L1HandlerTxArgs {
-        version: TransactionVersion::ZERO,
         contract_address,
         entry_point_selector: selector_from_name("l1_handler_set_value"),
         calldata,
diff --git a/crates/papyrus_rpc/src/v0_8/transaction.rs b/crates/papyrus_rpc/src/v0_8/transaction.rs
index 16375420410..da7dc9c41ee 100644
--- a/crates/papyrus_rpc/src/v0_8/transaction.rs
+++ b/crates/papyrus_rpc/src/v0_8/transaction.rs
@@ -1281,6 +1281,7 @@ impl From<MessageFromL1> for L1HandlerTransaction {
         calldata.extend_from_slice(&message.payload.0);
         let calldata = Calldata(Arc::new(calldata));
         Self {
+            // TODO: This should be of transaction version 0.
             version: TransactionVersion::ONE,
             contract_address: message.to_address,
             entry_point_selector: message.entry_point_selector,
diff --git a/crates/starknet_api/src/test_utils/l1_handler.rs b/crates/starknet_api/src/test_utils/l1_handler.rs
index a377ae4acda..bc848a6b011 100644
--- a/crates/starknet_api/src/test_utils/l1_handler.rs
+++ b/crates/starknet_api/src/test_utils/l1_handler.rs
@@ -3,9 +3,8 @@ use crate::executable_transaction::L1HandlerTransaction as ExecutableL1HandlerTr
 use crate::transaction::fields::{Calldata, Fee};
 use crate::transaction::{L1HandlerTransaction, TransactionHash, TransactionVersion};
 
-#[derive(Clone)]
+#[derive(Clone, Default)]
 pub struct L1HandlerTxArgs {
-    pub version: TransactionVersion,
     pub nonce: Nonce,
     pub contract_address: ContractAddress,
     pub entry_point_selector: EntryPointSelector,
@@ -14,20 +13,6 @@ pub struct L1HandlerTxArgs {
     pub paid_fee_on_l1: Fee,
 }
 
-impl Default for L1HandlerTxArgs {
-    fn default() -> Self {
-        L1HandlerTxArgs {
-            version: TransactionVersion::ZERO,
-            nonce: Nonce::default(),
-            contract_address: ContractAddress::default(),
-            entry_point_selector: EntryPointSelector::default(),
-            calldata: Calldata::default(),
-            tx_hash: TransactionHash::default(),
-            paid_fee_on_l1: Fee::default(),
-        }
-    }
-}
-
 /// Utility macro for creating `L1HandlerTransaction` to reduce boilerplate.
 #[macro_export]
 macro_rules! l1_handler_tx_args {
@@ -50,7 +35,7 @@ pub fn executable_l1_handler_tx(
 ) -> ExecutableL1HandlerTransaction {
     ExecutableL1HandlerTransaction {
         tx: L1HandlerTransaction {
-            version: l1_handler_tx_args.version,
+            version: TransactionVersion::ZERO, // The transaction version of L1 handler is always 0.
             nonce: l1_handler_tx_args.nonce,
             contract_address: l1_handler_tx_args.contract_address,
             entry_point_selector: l1_handler_tx_args.entry_point_selector,