diff --git a/global-requirements.txt b/global-requirements.txt
index 85f4950640..e4ac23994d 100644
--- a/global-requirements.txt
+++ b/global-requirements.txt
@@ -147,6 +147,7 @@ python-ironicclient>=0.6.0
 python-keystoneclient>=1.6.0
 python-manilaclient>=1.0.4
 python-memcached>=1.48
+python-mistralclient>=1.0.0
 python-muranoclient>=0.5.6
 python-neutronclient>=2.3.11,<3
 python-novaclient>=2.22.0