diff --git a/aqt/pinnedmodules.py b/aqt/pinnedmodules.py
index 06d0c9e25..5bf7f242f 100644
--- a/aqt/pinnedmodules.py
+++ b/aqt/pinnedmodules.py
@@ -25,3 +25,4 @@ import uuid
 import logging
 import logging.handlers
 import logging.config
+import typing