diff --git a/tests/config/_old_config.py b/tests/config/_old_config.py
index 0226bc36..211c1e72 100644
--- a/tests/config/_old_config.py
+++ b/tests/config/_old_config.py
@@ -1,3 +1,4 @@
+# type: ignore
 import numbers
 import sys
 import warnings