diff --git a/test-requirements.txt b/test-requirements.txt
index 4eedcba..33592e1 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<0.10,>=0.9.2
+hacking>=0.12.0,!=0.13.0,<0.14  # Apache-2.0
 
 coverage>=4.0 # Apache-2.0
 fixtures>=3.0.0 # Apache-2.0/BSD