diff --git a/crates/iota-benchmark/tests/simtest.rs b/crates/iota-benchmark/tests/simtest.rs
index 6a245efdce7..44fd754e58a 100644
--- a/crates/iota-benchmark/tests/simtest.rs
+++ b/crates/iota-benchmark/tests/simtest.rs
@@ -668,7 +668,7 @@ mod test {
     }
 
     async fn test_protocol_upgrade_compatibility_impl() {
-        let max_ver = ProtocolVersion::MAX.as_u64() + 1;
+        let max_ver = ProtocolVersion::MAX_ALLOWED.as_u64();
         let manifest = iota_framework_snapshot::load_bytecode_snapshot_manifest();
 
         let Some((&starting_version, _)) = manifest.range(..max_ver).last() else {