--- a/OSSEval/entity/migrations/0001_initial.py
+++ b/OSSEval/entity/migrations/0001_initial.py
@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-import datetime
+from south.utils import datetime_utils as datetime
 from south.db import db
 from south.v2 import SchemaMigration
 from django.db import models