diff --git a/auth/permissions.py b/auth/permissions.py
index 1a5b419..547f3d5 100644
--- a/auth/permissions.py
+++ b/auth/permissions.py
@@ -14,7 +14,7 @@ Other services: readonly, full (extensible by adding entries to SERVICE_PERMISSI
 """
 
 import logging
-from typing import Dict, FrozenSet, List, Optional, Set, Tuple
+from typing import Dict, FrozenSet, List, Optional, Tuple
 
 from auth.scopes import (
     GMAIL_READONLY_SCOPE,