diff --git a/requirements.txt b/requirements.txt
index 7dc0dd8..aa5f963 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ pbr!=2.1.0,>=2.0.0 # Apache-2.0
 six>=1.9.0 # MIT
 
 Babel!=2.4.0,>=2.3.4 # BSD
-cliff>=2.8.0 # Apache-2.0
+cliff!=2.9.0,>=2.8.0 # Apache-2.0
 keystoneauth1>=3.2.0 # Apache-2.0
 os-client-config>=1.28.0 # Apache-2.0
 oslo.i18n>=3.15.3 # Apache-2.0