diff --git a/backend/apps/agents/manager/session/aged_recap_lines.py b/backend/apps/agents/manager/session/aged_recap_lines.py
index e8c7bbfc..3a9830b4 100644
--- a/backend/apps/agents/manager/session/aged_recap_lines.py
+++ b/backend/apps/agents/manager/session/aged_recap_lines.py
@@ -10,7 +10,7 @@ arguments, so the agent can re-run any call whose detail it still needs."""
 
 import hashlib
 import json
-from typing import List, Optional, Tuple
+from typing import List, Tuple
 
 from typeguard import typechecked