diff --git a/api_v1/views/printing/views.py b/api_v1/views/printing/views.py
index 7763171..6f53a24 100644
--- a/api_v1/views/printing/views.py
+++ b/api_v1/views/printing/views.py
@@ -376,6 +376,9 @@ class PrintingJobViewSet(LimitedModelViewSet):
                 status=status.HTTP_400_BAD_REQUEST
             )
         
+        # 更新 updated_at 以使缓存失效
+        job.save(update_fields=['updated_at'])
+        
         # 重新获取 job 以刷新状态
         job.refresh_from_db()
         serializer = PrintingJobDetailSerializer(job)
@@ -416,6 +419,9 @@ class PrintingJobViewSet(LimitedModelViewSet):
                 status=status.HTTP_400_BAD_REQUEST
             )
         
+        # 更新 updated_at 以使缓存失效
+        job.save(update_fields=['updated_at'])
+        
         # 重新获取 job 以刷新状态
         job.refresh_from_db()
         serializer = PrintingJobDetailSerializer(job)
@@ -779,6 +785,9 @@ class PlateOrderViewSet(LimitedModelViewSet):
                 status=status.HTTP_400_BAD_REQUEST
             )
         
+        # 更新 updated_at 以使缓存失效
+        plate_order.save(update_fields=['updated_at'])
+        
         # 重新获取 plate_order 以刷新状态
         plate_order.refresh_from_db()
         from .serializers import PlateOrderDetailSerializer
@@ -819,6 +828,9 @@ class PlateOrderViewSet(LimitedModelViewSet):
                 status=status.HTTP_400_BAD_REQUEST
             )
         
+        # 更新 updated_at 以使缓存失效
+        plate_order.save(update_fields=['updated_at'])
+        
         # 重新获取 plate_order 以刷新状态
         plate_order.refresh_from_db()
         from .serializers import PlateOrderDetailSerializer