diff --git a/test-requirements.txt b/test-requirements.txt
index 943cd39..017d476 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>=0.12.0,!=0.13.0,<0.14  # Apache-2.0
+hacking!=0.13.0,<0.14,>=0.12.0 # Apache-2.0
 pylint==1.4.5 # GPLv2
 python-openstackclient>=3.3.0 # Apache-2.0
 sphinx>=1.5.1 # BSD