diff --git a/src/snek/app.py b/src/snek/app.py
index a019d74..6ffee4f 100644
--- a/src/snek/app.py
+++ b/src/snek/app.py
@@ -17,8 +17,8 @@ from aiohttp_session import (
     setup as session_setup,
 )
 from aiohttp_session.cookie_storage import EncryptedCookieStorage
-from app.app import Application as BaseApplication
 
+from app.app import Application as BaseApplication
 from snek.docs.app import Application as DocsApplication
 from snek.mapper import get_mappers
 from snek.service import get_services
diff --git a/src/snek/docs/app.py b/src/snek/docs/app.py
index 50a4245..dcbd6f8 100644
--- a/src/snek/docs/app.py
+++ b/src/snek/docs/app.py
@@ -1,8 +1,8 @@
 import pathlib
 
 from aiohttp import web
-from app.app import Application as BaseApplication
 
+from app.app import Application as BaseApplication
 from snek.system.markdown import MarkdownExtension
 
 
diff --git a/src/snek/system/http.py b/src/snek/system/http.py
index a1e87a4..2b59636 100644
--- a/src/snek/system/http.py
+++ b/src/snek/system/http.py
@@ -32,9 +32,10 @@ from urllib.parse import urljoin
 
 import aiohttp
 import imgkit
-from app.cache import time_cache_async
 from bs4 import BeautifulSoup
 
+from app.cache import time_cache_async
+
 
 async def crc32(data):
     try:
diff --git a/src/snek/system/markdown.py b/src/snek/system/markdown.py
index 82a222e..53b5db8 100644
--- a/src/snek/system/markdown.py
+++ b/src/snek/system/markdown.py
@@ -2,12 +2,13 @@
 
 from types import SimpleNamespace
 
-from app.cache import time_cache_async
 from mistune import HTMLRenderer, Markdown
 from pygments import highlight
 from pygments.formatters import html
 from pygments.lexers import get_lexer_by_name
 
+from app.cache import time_cache_async
+
 
 class MarkdownRenderer(HTMLRenderer):
 
diff --git a/src/snek/webdav.py b/src/snek/webdav.py
index 4c57fab..6025038 100755
--- a/src/snek/webdav.py
+++ b/src/snek/webdav.py
@@ -12,9 +12,10 @@ import uuid
 import aiofiles
 import aiohttp
 import aiohttp.web
-from app.cache import time_cache_async
 from lxml import etree
 
+from app.cache import time_cache_async
+
 
 @aiohttp.web.middleware
 async def debug_middleware(request, handler):