diff --git a/test-requirements.txt b/test-requirements.txt
index 4b9d3df5..e16cb83f 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<0.11,>=0.10.0
+hacking!=0.13.0,<0.14,>=0.12.0 # Apache-2.0
 
 beautifulsoup4 # MIT
 coverage>=4.0 # Apache-2.0