diff --git a/python_repositories/adapters/file_backed_queue_adapter.py b/python_repositories/adapters/file_backed_queue_adapter.py
index 243789d..e20abfd 100644
--- a/python_repositories/adapters/file_backed_queue_adapter.py
+++ b/python_repositories/adapters/file_backed_queue_adapter.py
@@ -102,9 +102,7 @@ class FileBackedQueueAdapter(QueueRepositoryInterface):
             if added:
                 self._append_items(added)
             if self._config.age_key is not None:
-                cutoff = datetime.now(UTC) - timedelta(
-                    hours=self._config.max_age_hours
-                )
+                cutoff = datetime.now(UTC) - timedelta(hours=self._config.max_age_hours)
                 if self._memory.evict_older_than(cutoff):
                     self._compact()
 
diff --git a/tests/unit/memory_queue_adapter_test.py b/tests/unit/memory_queue_adapter_test.py
index 1a08c18..0e3cb15 100644
--- a/tests/unit/memory_queue_adapter_test.py
+++ b/tests/unit/memory_queue_adapter_test.py
@@ -102,11 +102,15 @@ def test_parse_age_naive_datetime() -> None:
 
 
 def test_parse_age_zulu_string() -> None:
-    assert _parse_age("2024-01-01T00:00:00Z") == datetime(2024, 1, 1, 0, 0, 0, tzinfo=UTC)
+    assert _parse_age("2024-01-01T00:00:00Z") == datetime(
+        2024, 1, 1, 0, 0, 0, tzinfo=UTC
+    )
 
 
 def test_parse_age_naive_string() -> None:
-    assert _parse_age("2024-01-01T00:00:00") == datetime(2024, 1, 1, 0, 0, 0, tzinfo=UTC)
+    assert _parse_age("2024-01-01T00:00:00") == datetime(
+        2024, 1, 1, 0, 0, 0, tzinfo=UTC
+    )
 
 
 def test_dequeue_rejects_negative_max_items() -> None: