diff --git a/requirements.txt b/requirements.txt
index 734ec746..785f6b22 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@
 
 Babel!=2.4.0,>=2.3.4 # BSD
 pbr!=2.1.0,>=2.0.0 # Apache-2.0
-cliff>=2.8.0 # Apache-2.0
+cliff!=2.9.0,>=2.8.0 # Apache-2.0
 iso8601>=0.1.11 # MIT
 osc-lib>=1.7.0 # Apache-2.0
 PrettyTable<0.8,>=0.7.1 # BSD