diff --git a/test-requirements.txt b/test-requirements.txt
index 39ecf62..e43b7a1 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,4 +1,4 @@
-hacking>=0.9.2,<0.10
+hacking>=0.12.0,!=0.13.0,<0.14  # Apache-2.0
 
 coverage>=3.6
 sphinx>=1.1.2,!=1.2.0,!=1.3b1,<1.3