diff --git a/tests/testapp/views.py b/tests/testapp/views.py
index 69aa3f1..77c43a8 100644
--- a/tests/testapp/views.py
+++ b/tests/testapp/views.py
@@ -1,14 +1,15 @@
 from rest_framework.response import Response
-from rest_framework.viewsets import ReadOnlyModelViewSet, ViewSet, GenericViewSet
+from rest_framework.viewsets import GenericViewSet, ReadOnlyModelViewSet
 
 from drf_excel.mixins import XLSXFileMixin
 from drf_excel.renderers import XLSXRenderer
+
 from .models import AllFieldsModel, ExampleModel, SecretFieldModel
 from .serializers import (
     AllFieldsSerializer,
+    DynamicFieldSerializer,
     ExampleSerializer,
     SecretFieldSerializer,
-    DynamicFieldSerializer,
 )
 
 
diff --git a/tests/urls.py b/tests/urls.py
index 538b043..8eadca0 100644
--- a/tests/urls.py
+++ b/tests/urls.py
@@ -2,9 +2,9 @@
 
 from .testapp.views import (
     AllFieldsViewSet,
+    DynamicFieldViewSet,
     ExampleViewSet,
     SecretFieldViewSet,
-    DynamicFieldViewSet,
 )
 
 router = routers.SimpleRouter()