diff --git a/laborious/activities/opc.py b/laborious/activities/opc.py
index cfbf450..c4abe95 100644
--- a/laborious/activities/opc.py
+++ b/laborious/activities/opc.py
@@ -1,9 +1,8 @@
-from collections.abc import Hashable
-
 from temporalio import activity, workflow
 
 with workflow.unsafe.imports_passed_through():
     import traceback
+    from collections.abc import Hashable
     from typing import Any
 
     from pandas import DataFrame