diff --git a/src/adapter/postgres.py b/src/adapter/postgres.py
index 439e403..a107c78 100644
--- a/src/adapter/postgres.py
+++ b/src/adapter/postgres.py
@@ -474,7 +474,7 @@ class Postgres(DatabaseBase):
             query = query.filter(created_at__lte=date_to)
 
         if has_post:
-            query = query.filter(post__isnull=False)
+            query = query.filter(post_id__isnull=False)
 
         return (
             await query.prefetch_related(