diff --git a/backend/dvadmin/utils/viewset.py b/backend/dvadmin/utils/viewset.py
index b85007a..d7d1dc0 100644
--- a/backend/dvadmin/utils/viewset.py
+++ b/backend/dvadmin/utils/viewset.py
@@ -131,8 +131,7 @@ class CustomModelViewSet(ModelViewSet, ImportSerializerMixin, ExportSerializerMi
         instance.delete()
         return DetailResponse(data=[], msg="删除成功")
 
-    keys = openapi.Schema(description='主键列表', type=openapi.TYPE_ARRAY, items=openapi.TYPE_STRING)
-
+    keys = openapi.Schema(description='主键列表', type=openapi.TYPE_ARRAY, items=openapi.Schema(type=openapi.TYPE_STRING))
     @swagger_auto_schema(request_body=openapi.Schema(
         type=openapi.TYPE_OBJECT,
         required=['keys'],