diff --git a/oslo_cache/_memcache_pool.py b/oslo_cache/_memcache_pool.py
index 3dfece97..150469c1 100644
--- a/oslo_cache/_memcache_pool.py
+++ b/oslo_cache/_memcache_pool.py
@@ -18,9 +18,9 @@
 import collections
 import contextlib
 import itertools
+import queue
 import threading
 import time
-import queue
 
 try:
     import eventlet
diff --git a/test-requirements.txt b/test-requirements.txt
index fedd3dbd..2726df64 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,7 +1,7 @@
 # The order of packages is significant, because pip processes them in the order
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
-hacking>=3.0,<3.1.0 # Apache-2.0
+hacking>=3.0.1,<3.1.0 # Apache-2.0
 oslotest>=3.2.0 # Apache-2.0
 pifpaf>=0.10.0 # Apache-2.0
 # Bandit security code scanner