diff --git a/server/apps/supervision/views.py b/server/apps/supervision/views.py
index 0cbdcc8..942cc26 100644
--- a/server/apps/supervision/views.py
+++ b/server/apps/supervision/views.py
@@ -498,7 +498,7 @@ class Task2DoViewSet(ListModelMixin, GenericViewSet):
         instance.count_up = count_up
         instance.save()
 
-    @action(methods=['put'], detail=False, perms_map = {'put':'task2do'}, serializer_class=UpdateFieldSerializer)
+    @action(methods=['put'], detail=True, perms_map = {'put':'task2do'}, serializer_class=UpdateFieldSerializer)
     def save_num(self, request, *args, **kwargs):
         """保存数值