diff --git a/jituan/management/commands/backfill_penalty_club_id.py b/jituan/management/commands/backfill_penalty_club_id.py
index 6c00ec1..e6f58ef 100644
--- a/jituan/management/commands/backfill_penalty_club_id.py
+++ b/jituan/management/commands/backfill_penalty_club_id.py
@@ -23,7 +23,7 @@ class Command(BaseCommand):
 
         updated = 0
         with transaction.atomic():
-            for p in qs.iterator():
+            for p in qs.to_list():
                 order = None
                 if p.RelatedOrderID:
                     order = Order.query.filter(OrderID=p.RelatedOrderID).first()