diff --git a/apps/sspanel/models.py b/apps/sspanel/models.py
index 0b76378895..9efb95a22c 100644
--- a/apps/sspanel/models.py
+++ b/apps/sspanel/models.py
@@ -14,7 +14,7 @@
 from django.contrib.auth.models import AbstractUser
 from django.core.exceptions import ValidationError
 from django.core.validators import MaxValueValidator, MinValueValidator
-from django.db import models, transaction, IntegrityError
+from django.db import IntegrityError, models, transaction
 from django.utils import functional, timezone
 from redis.exceptions import LockError