diff --git a/src/authentic2_cut/api_views.py b/src/authentic2_cut/api_views.py
index 940762f..409a85d 100644
--- a/src/authentic2_cut/api_views.py
+++ b/src/authentic2_cut/api_views.py
@@ -26,7 +26,7 @@ from django.core.exceptions import ValidationError
 
 from rest_framework.generics import ListAPIView
 from rest_framework import serializers, pagination
-from rest_framework.decorators import detail_route
+from rest_framework.decorators import action
 from rest_framework.response import Response
 from rest_framework import status
 
@@ -97,8 +97,8 @@ def _get_cut_validation_accepted_mime_types():
     ])
 
 
-@detail_route(methods=['get', 'post'], url_path='validate',
-              permission_classes=(api_views.DjangoPermission('custom_user.cut_validate_user'),))
+@action(detail=True, methods=['get', 'post'], url_path='validate',
+        permission_classes=(api_views.DjangoPermission('custom_user.cut_validate_user'),))
 def validate_cut(self, request, uuid):
     user = self.get_object()
     origin = get_origin(request)
diff --git a/tox.ini b/tox.ini
index e7f295c..3041578 100644
--- a/tox.ini
+++ b/tox.ini
@@ -72,12 +72,8 @@ commands =
 [pytest]
 junit_family=xunit2
 filterwarnings =
-  error
-# there is nothing we can do about that
-  ignore:defusedxml.lxml is no longer supported:DeprecationWarning:openpyxl.xml.functions
-  ignore:Using or importing the ABCs from 'collections':DeprecationWarning:django.*
-  ignore:Using user.is_authenticated\(\) and user.is_anonymous\(\) as a method is deprecated.::rest_framework\.*
-# remind us later
-  once:.*staticfiles.*::django\..*
-  once:please use dns.resolver.resolve
   once
+  ignore:::django\..*
+  ignore:::authentic2\..*
+  ignore:::rest_framework\..*
+  ignore:::gettext\..*