diff --git a/wagtail/contrib/wagtailfrontendcache/backends.py b/wagtail/contrib/wagtailfrontendcache/backends.py
index 4a5d07226b..1683e602b8 100644
--- a/wagtail/contrib/wagtailfrontendcache/backends.py
+++ b/wagtail/contrib/wagtailfrontendcache/backends.py
@@ -1,8 +1,8 @@
 from __future__ import absolute_import, unicode_literals
 
-from collections import defaultdict
 import logging
 import uuid
+from collections import defaultdict
 
 import requests
 from django.core.exceptions import ImproperlyConfigured
diff --git a/wagtail/contrib/wagtailfrontendcache/tests.py b/wagtail/contrib/wagtailfrontendcache/tests.py
index c9e6f03ef9..bd75412a44 100644
--- a/wagtail/contrib/wagtailfrontendcache/tests.py
+++ b/wagtail/contrib/wagtailfrontendcache/tests.py
@@ -1,7 +1,6 @@
 from __future__ import absolute_import, unicode_literals
 
 import mock
-
 from django.core.exceptions import ImproperlyConfigured
 from django.test import TestCase
 from django.test.utils import override_settings
@@ -12,7 +11,9 @@ from wagtail.contrib.wagtailfrontendcache.utils import get_backends
 from wagtail.tests.testapp.models import EventIndex
 from wagtail.wagtailcore.models import Page
 
-from .utils import purge_url_from_cache, purge_urls_from_cache, purge_page_from_cache, purge_pages_from_cache, PurgeBatch
+from .utils import (
+    PurgeBatch, purge_page_from_cache, purge_pages_from_cache, purge_url_from_cache,
+    purge_urls_from_cache)
 
 
 class TestBackendConfiguration(TestCase):