diff --git a/requirements.txt b/requirements.txt
index c619669bf27e..891bf8d62a49 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -26,7 +26,7 @@ Babel!=2.4.0,>=2.3.4 # BSD
 enum34>=1.0.4;python_version=='2.7' or python_version=='2.6' or python_version=='3.3' # BSD
 iso8601>=0.1.11 # MIT
 jsonschema>=2.6.0 # MIT
-python-cinderclient>=3.3.0 # Apache-2.0
+python-cinderclient!=4.0.0,>=3.3.0 # Apache-2.0
 keystoneauth1>=3.9.0 # Apache-2.0
 python-neutronclient>=6.7.0 # Apache-2.0
 python-glanceclient>=2.8.0 # Apache-2.0