diff --git a/src/governor.cairo b/src/governor.cairo
index e4c131e..5b40006 100644
--- a/src/governor.cairo
+++ b/src/governor.cairo
@@ -463,7 +463,11 @@ pub mod Governor {
         fn __execute__(ref self: ContractState, mut calls: Array<Call>) -> Array<Span<felt252>> {
             assert(get_caller_address().is_zero(), 'Invalid caller');
             let tx_version = get_tx_info().unbox().version.into();
-            assert(tx_version == 1 || tx_version == 3, 'Invalid TX version');
+            assert(
+                tx_version == 0x100000000000000000000000000000001
+                    || tx_version == 0x100000000000000000000000000000003,
+                'Invalid TX version'
+            );
             let mut results: Array<Span<felt252>> = array![];
             while let Option::Some(call) = calls.pop_front() {
                 results.append(call.execute());
diff --git a/src/governor_test.cairo b/src/governor_test.cairo
index c2fd591..1e5d9ef 100644
--- a/src/governor_test.cairo
+++ b/src/governor_test.cairo
@@ -1041,12 +1041,26 @@ fn test_governor_execute_fails_from_non_zero() {
 
 #[test]
 #[should_panic(expected: ('Invalid TX version', 'ENTRYPOINT_FAILED'))]
-fn test_governor_execute_fails_invalid_tx_version() {
+fn test_governor_execute_fails_tx_version_0() {
     let (_staker, _token, governor, _config) = setup();
     set_version(0);
     AccountContractDispatcher { contract_address: governor.contract_address }.__execute__(array![]);
 }
 
+#[test]
+#[should_panic(expected: ('Invalid TX version', 'ENTRYPOINT_FAILED'))]
+fn test_governor_execute_fails_tx_version_1() {
+    let (_staker, _token, governor, _config) = setup();
+    set_version(1);
+    AccountContractDispatcher { contract_address: governor.contract_address }.__execute__(array![]);
+}
+
+#[test]
+fn test_governor_execute_succeeds_version_simulate() {
+    let (_staker, _token, governor, _config) = setup();
+    set_version(0x100000000000000000000000000000001);
+    AccountContractDispatcher { contract_address: governor.contract_address }.__execute__(array![]);
+}
 
 #[test]
 fn test_reconfigure_succeeds_self_call() {