diff --git a/tests/conftest.py b/tests/conftest.py
index ae68f0c..0b037af 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -51,7 +51,7 @@ def _get_schemas_v1(name):
     schema_files = list((test_dir / name).glob("*.json"))
     assert len(schema_files) > 0, f"No schema files found in {test_dir / name}"
     schemas = []
-    
+
     for file in schema_files:
         try:
             schemas.append({"name": file.stem, "schema": json.loads(file.read_text())})
diff --git a/tests/test_v1.py b/tests/test_v1.py
index 7d04cbd..76eb6fa 100644
--- a/tests/test_v1.py
+++ b/tests/test_v1.py
@@ -11,9 +11,9 @@ def test_validate_df_v1_invalid(bad_schema_v1):
 
 def test_schema_objects(good_schema_v1: dict):
     from dfschema.core.core import DfSchema
-    
+
     S = DfSchema.from_dict(good_schema_v1["schema"])
-    if good_schema_v1['name'] == 'sales_certainty_inference':
+    if good_schema_v1["name"] == "sales_certainty_inference":
         new = S.dict()
-        model_col = [c for c in new['columns'] if c['name'] == 'model'][0]
-        assert model_col.get('categorical', {}).get('mode') == 'exact_set'
+        model_col = [c for c in new["columns"] if c["name"] == "model"][0]
+        assert model_col.get("categorical", {}).get("mode") == "exact_set"