diff --git a/merico/unit_tests/main.py b/merico/unit_tests/main.py
index 957316d..b5e0df5 100644
--- a/merico/unit_tests/main.py
+++ b/merico/unit_tests/main.py
@@ -1,4 +1,4 @@
-# ruff: noqa: E402
+# ruff: noqa: E402 I001
 import os
 import sys