diff --git a/hb_server/apps/mtm/views.py b/hb_server/apps/mtm/views.py
index 2862a39..9318c36 100644
--- a/hb_server/apps/mtm/views.py
+++ b/hb_server/apps/mtm/views.py
@@ -64,7 +64,7 @@ class ProcessViewSet(PageOrNot, CreateUpdateModelAMixin, ModelViewSet):
     ordering_fields = ['number']
     ordering = ['number']
 
-    @action(methods=['get'], detail=True, perms_map={'get':'process_update'}, pagination_class=None, serializer_class=StepDetailSerializer)
+    @action(methods=['get'], detail=True, perms_map={'get':'*'}, pagination_class=None, serializer_class=StepDetailSerializer)
     def steps(self, request, pk=None):
         """
         工序下的子工序