diff --git a/dvadmin-backend/apps/vadmin/op_drf/serializers.py b/dvadmin-backend/apps/vadmin/op_drf/serializers.py
index 7581046..b494416 100644
--- a/dvadmin-backend/apps/vadmin/op_drf/serializers.py
+++ b/dvadmin-backend/apps/vadmin/op_drf/serializers.py
@@ -1,4 +1,4 @@
-from functools import cached_property
+from django.utils.functional import cached_property
 
 from rest_framework import serializers
 from rest_framework.fields import empty