diff --git a/test/factories.py b/test/factories.py
index e9a28a3..974ee7d 100644
--- a/test/factories.py
+++ b/test/factories.py
@@ -224,7 +224,7 @@ class Meta:
     id = factory.Faker('uuid4')
     title = factory.Faker('catch_phrase')
     description = factory.Faker('sentence')
-    filename = factory.Faker('file_name')
+    filename = factory.Sequence(lambda n: f'{fake.file_name()}.{n}')
     mimetype = factory.Faker('mime_type')
     size = factory.LazyFunction(lambda: randint(1, sys.maxsize))
     md5 = factory.Faker('md5')