diff --git a/test-requirements.txt b/test-requirements.txt
index 5d5d532..f9ee62f 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>=1.1.0 # Apache-2.0
+hacking>=3.0.1,<3.1.0 # Apache-2.0
 doc8>=0.6.0 # Apache-2.0
 Pygments>=2.2.0 # BSD license
 coverage!=4.4,>=4.0 # Apache-2.0