diff --git a/test-requirements.txt b/test-requirements.txt
index 3765a25..2962303 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,4 +1,4 @@
-hacking
+hacking < 4.0.1
 bashate >= 0.2
 bandit;python_version>="3.5"
 PyYAML >= 3.1.0