diff --git a/packages/engine/src/errors.cairo b/packages/engine/src/errors.cairo
index 22167a8f..c87aec26 100644
--- a/packages/engine/src/errors.cairo
+++ b/packages/engine/src/errors.cairo
@@ -17,7 +17,6 @@ pub mod Error {
     pub const UNSATISFIED_LOCKTIME: felt252 = 'Unsatisfied locktime';
     pub const SCRIPT_STRICT_MULTISIG: felt252 = 'OP_CHECKMULTISIG invalid dummy';
     pub const FINALIZED_TX_CLTV: felt252 = 'Finalized tx in OP_CLTV';
-    pub const INVALID_TX_VERSION: felt252 = 'Invalid transaction version';
     pub const SCRIPT_INVALID: felt252 = 'Invalid script data';
     pub const INVALID_COINBASE: felt252 = 'Invalid coinbase transaction';
     pub const SIG_NULLFAIL: felt252 = 'Sig non-zero on failed checksig';
diff --git a/packages/engine/src/opcodes/locktime.cairo b/packages/engine/src/opcodes/locktime.cairo
index 7bb810f2..8921df9e 100644
--- a/packages/engine/src/opcodes/locktime.cairo
+++ b/packages/engine/src/opcodes/locktime.cairo
@@ -118,6 +118,14 @@ pub fn opcode_checksequenceverify<
         return Result::Ok(());
     }
 
+    // Prevent trigger OP_CHECKSEQUENCEVERIFY before tx version 2
+    let version = EngineTransactionTrait::<
+        T, I, O, IEngineTransactionInputTrait, IEngineTransactionOutputTrait
+    >::get_version(engine.transaction);
+    if version < 2 {
+        return Result::Err(Error::UNSATISFIED_LOCKTIME);
+    }
+
     let transaction_input = EngineTransactionTrait::<
         T, I, O, IEngineTransactionInputTrait, IEngineTransactionOutputTrait
     >::get_transaction_inputs(engine.transaction)
@@ -129,14 +137,6 @@ pub fn opcode_checksequenceverify<
         return Result::Err(Error::UNSATISFIED_LOCKTIME);
     }
 
-    // Prevent trigger OP_CHECKSEQUENCEVERIFY before tx version 2
-    let version = EngineTransactionTrait::<
-        T, I, O, IEngineTransactionInputTrait, IEngineTransactionOutputTrait
-    >::get_version(engine.transaction);
-    if version < 2 {
-        return Result::Err(Error::INVALID_TX_VERSION);
-    }
-
     // Mask off non-consensus bits before comparisons
     let locktime_mask = SEQUENCE_LOCKTIME_IS_SECOND | SEQUENCE_LOCKTIME_MASK;
     verify_locktime(
diff --git a/packages/tests/src/tests/opcodes/test_locktime.cairo b/packages/tests/src/tests/opcodes/test_locktime.cairo
index d0de19ed..91f837cf 100644
--- a/packages/tests/src/tests/opcodes/test_locktime.cairo
+++ b/packages/tests/src/tests/opcodes/test_locktime.cairo
@@ -148,7 +148,6 @@ fn test_opcode_checksequence_as_op_nop_fail() {
 }
 
 #[test]
-#[ignore]
 fn test_opcode_checksequence_tx_version_fail() {
     let mut program =
         "OP_DATA_4 0x40000000 OP_CHECKSEQUENCEVERIFY"; // 0x40000000 == 64 in ScriptNum
@@ -157,7 +156,7 @@ fn test_opcode_checksequence_tx_version_fail() {
     // Running with tx v1
     let flags: u32 = ScriptFlags::ScriptVerifyCheckSequenceVerify.into();
     let mut engine = utils::test_compile_and_run_with_tx_flags_err(
-        program, tx, flags, Error::INVALID_TX_VERSION
+        program, tx, flags, Error::UNSATISFIED_LOCKTIME
     );
     utils::check_dstack_size(ref engine, 1);
 }