diff --git a/test-requirements.txt b/test-requirements.txt
index e38b0224..1a15bf24 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -3,7 +3,7 @@
 # process, which may cause wedges in the gate later.
 
 # hacking should be first
-hacking>=0.12.0,<0.13 # Apache-2.0
+hacking>=0.12.0,!=0.13.0,<0.14  # Apache-2.0
 
 coverage>=3.6 # Apache-2.0
 kombu<4.0.0 # BSD