diff --git a/test-requirements.txt b/test-requirements.txt
index 39c52527..c73097ce 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -5,7 +5,7 @@
 # Require Horizon
 -e git://github.com/openstack/horizon.git#egg=horizon
 
-hacking<0.11,>=0.10.2 # Apache-2.0
+hacking>=0.12.0,!=0.13.0,<0.14  # Apache-2.0
 
 coverage>=4.0 # Apache-2.0
 django-nose>=1.4.4 # BSD