diff --git a/graphene_django/filter/tests/test_in_filter.py b/graphene_django/filter/tests/test_in_filter.py
index 7126645..ac3dddd 100644
--- a/graphene_django/filter/tests/test_in_filter.py
+++ b/graphene_django/filter/tests/test_in_filter.py
@@ -35,13 +35,14 @@ class PersonFilterSet(FilterSet):
         model = Person
         fields = {"name": ["in"]}
 
-    
+
 class PersonNode(DjangoObjectType):
     class Meta:
         model = Person
         interfaces = (Node,)
         filterset_class = PersonFilterSet
 
+
 class Query(ObjectType):
     pets = DjangoFilterConnectionField(PetNode)
     people = DjangoFilterConnectionField(PersonNode)