diff --git a/server/apps/supervision/views.py b/server/apps/supervision/views.py
index 504fe65..0cbdcc8 100644
--- a/server/apps/supervision/views.py
+++ b/server/apps/supervision/views.py
@@ -579,7 +579,7 @@ class PgoalDeptViewSet(Domixin, CreateUpdateCustomMixin, ModelViewSet):
     serializer_class = PgoalDeptSerializer
 
     def perform_update(self, serializer):
-        instance = super().perform_update(serializer)
+        instance = serializer.save()
         goal_file = instance.goal_file
         if goal_file:
             instance.goal_files.add(goal_file)