1 files changed, 4 insertions, 0 deletions
diff --git a/synapse/storage/roommember.py b/synapse/storage/roommember.py
index 1d3e004c90..3065b0c1a5 100644
--- a/synapse/storage/roommember.py
+++ b/synapse/storage/roommember.py
@@ -58,6 +58,10 @@ class RoomMemberStore(SQLBaseStore):
             txn.call_after(self.get_rooms_for_user.invalidate, (event.state_key,))
             txn.call_after(self.get_joined_hosts_for_room.invalidate, (event.room_id,))
             txn.call_after(self.get_users_in_room.invalidate, (event.room_id,))
+            txn.call_after(
+                self._membership_stream_cache.entity_has_changed,
+                event.state_key, event.internal_metadata.stream_ordering
+            )
 
     def get_room_member(self, user_id, room_id):
         """Retrieve the current state of a room member.