diff --git a/knox/auth.py b/knox/auth.py
index 8dd4c80..f02576a 100644
--- a/knox/auth.py
+++ b/knox/auth.py
@@ -1,6 +1,6 @@
 import binascii
-from hmac import compare_digest
 import logging
+from hmac import compare_digest
 
 from django.utils import timezone
 from django.utils.translation import gettext_lazy as _
@@ -14,7 +14,6 @@
 from knox.settings import CONSTANTS, knox_settings
 from knox.signals import token_expired
 
-
 logger = logging.getLogger(__name__)