diff --git a/contracts/blade/Gateway.sol b/contracts/blade/Gateway.sol
index 564e4dee..26382ea2 100644
--- a/contracts/blade/Gateway.sol
+++ b/contracts/blade/Gateway.sol
@@ -79,6 +79,10 @@ contract Gateway is ValidatorSetStorage, IGateway {
 
         verifySignature(bls.hashToPoint(DOMAIN_BRIDGE, hash), signedBridgeBatch.signature, signedBridgeBatch.bitmap);
 
+        if (block.number > signedBridgeBatch.threshold && !signedBridgeBatch.isRollback) {
+            revert("block number is bigger than threshold");
+        }
+
         uint256 length = batchMessages.length;
         for (uint256 i = 0; i < length; ) {
             _executeBridgeMessage(batchMessages[i]);