diff --git a/test-requirements.txt b/test-requirements.txt
index c6113809f4..2dbc440869 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -7,7 +7,7 @@ beautifulsoup4>=4.6.0 # MIT
 coverage!=4.4,>=4.0 # Apache-2.0
 doc8>=0.6.0 # Apache-2.0
 extras>=1.0.0 # MIT
-hacking>=0.10.0
+hacking>=0.10.0,<1.1.0
 openstackdocstheme>=1.18.1 # Apache-2.0
 oslo.log>=3.36.0 # Apache-2.0
 oslotest>=3.2.0 # Apache-2.0