diff --git a/test-requirements.txt b/test-requirements.txt
index 18e83d8..772adaa 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -2,7 +2,7 @@
 # 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
 
 coverage>=3.6
 freezegun>=0.3.6  # Apache-2.0