diff --git a/test-requirements.txt b/test-requirements.txt
index b13aa895ed..95920f73c3 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -7,7 +7,7 @@
 # be installed in a specific order.
 #
 # Hacking should appear first in case something else depends on pep8
-hacking<0.11,>=0.10.0
+hacking!=0.13.0,<0.14,>=0.12.0 # Apache-2.0
 #
 coverage>=4.0 # Apache-2.0
 django-nose>=1.4.4 # BSD