diff --git a/zerver/lib/stream_subscription.py b/zerver/lib/stream_subscription.py
index fb1a66418e..6e762c82a5 100644
--- a/zerver/lib/stream_subscription.py
+++ b/zerver/lib/stream_subscription.py
@@ -1,5 +1,4 @@
 from typing import Any, Dict, List, Tuple
-from typing_extensions import TypedDict
 
 from django.db.models.query import QuerySet
 from zerver.models import (
@@ -39,11 +38,6 @@ def get_stream_subscriptions_for_users(user_profiles: List[UserProfile]) -> Quer
         recipient__type=Recipient.STREAM,
     )
 
-SubInfo = TypedDict('SubInfo', {
-    'sub': Subscription,
-    'stream': Stream,
-})
-
 def get_bulk_stream_subscriber_info(
         user_profiles: List[UserProfile],
         stream_dict: Dict[int, Stream]) -> Dict[int, List[Tuple[Subscription, Stream]]]: