diff --git a/src/_zkapauthorizer/tests/test_model.py b/src/_zkapauthorizer/tests/test_model.py
index 491bf8401b09a00d4e9eb2bbec753ee8e8e44854..80aa1f25c534185b62b24fe6e85e8b9ea7b4447a 100644
--- a/src/_zkapauthorizer/tests/test_model.py
+++ b/src/_zkapauthorizer/tests/test_model.py
@@ -919,7 +919,6 @@ class UnblindedTokenStoreTests(TestCase):
         )
 
 
-
 def store_for_test(testcase, get_config, get_now):
     """
     Create a ``VoucherStore`` in a temporary directory associated with the