diff --git a/core/migrations/0021_alter_hint_options.py b/core/migrations/0021_alter_hint_options.py
index 3ebf662..5b664f5 100644
--- a/core/migrations/0021_alter_hint_options.py
+++ b/core/migrations/0021_alter_hint_options.py
@@ -4,14 +4,13 @@
 
 
 class Migration(migrations.Migration):
-
     dependencies = [
-        ('core', '0020_alter_logicpuzzlehint_qr_index_and_more'),
+        ("core", "0020_alter_logicpuzzlehint_qr_index_and_more"),
     ]
 
     operations = [
         migrations.AlterModelOptions(
-            name='hint',
+            name="hint",
             options={},
         ),
     ]