diff --git a/letsencrypt/plugins/common.py b/letsencrypt/plugins/common.py
index f18b1fb3b..2e9e15b2f 100644
--- a/letsencrypt/plugins/common.py
+++ b/letsencrypt/plugins/common.py
@@ -1,11 +1,11 @@
 """Plugin common functions."""
 import os
-import pkg_resources
 import re
 import shutil
 import tempfile
 
 import OpenSSL
+import pkg_resources
 import zope.interface
 
 from acme.jose import util as jose_util
diff --git a/letsencrypt/plugins/disco_test.py b/letsencrypt/plugins/disco_test.py
index 0df4f88f1..1aeaf81c1 100644
--- a/letsencrypt/plugins/disco_test.py
+++ b/letsencrypt/plugins/disco_test.py
@@ -1,8 +1,8 @@
 """Tests for letsencrypt.plugins.disco."""
-import pkg_resources
 import unittest
 
 import mock
+import pkg_resources
 import zope.interface
 
 from letsencrypt import errors
diff --git a/letsencrypt/tests/storage_test.py b/letsencrypt/tests/storage_test.py
index 9d402089c..5b9f393fe 100644
--- a/letsencrypt/tests/storage_test.py
+++ b/letsencrypt/tests/storage_test.py
@@ -1,13 +1,13 @@
 """Tests for letsencrypt.storage."""
 import datetime
-import pytz
 import os
-import tempfile
 import shutil
+import tempfile
 import unittest
 
 import configobj
 import mock
+import pytz
 
 from letsencrypt import configuration
 from letsencrypt import errors