diff --git a/requirements.txt b/requirements.txt
index fd8b86100..ade85112c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,6 +7,7 @@ os-client-config
 pbr>=1.6
 setuptools>=11.3
 shade>=1.8.0
+Werkzeug==0.15.2
 python-neutronclient
 python-openstackclient
 python-heatclient