diff --git a/upper-constraints.txt b/upper-constraints.txt
index 6344f24157..e5131222dd 100644
--- a/upper-constraints.txt
+++ b/upper-constraints.txt
@@ -321,7 +321,7 @@ python-magnumclient===2.3.1
 python-manilaclient===1.11.0
 python-memcached===1.58
 python-mimeparse===1.6.0
-python-mistralclient===2.1.2
+python-mistralclient===3.0.0
 python-monascaclient===1.4.0
 python-muranoclient===0.11.1
 python-neutronclient===6.0.0