diff --git a/requirements.txt b/requirements.txt
index 5c2cdb1b..b2f088dd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,6 +17,7 @@ oslo.concurrency>=3.8.0 # Apache-2.0
 stevedore>=1.20.0 # Apache-2.0
 jsonschema!=2.5.0,<3.0.0,>=2.0.0 # MIT
 python-keystoneclient>=3.8.0 # Apache-2.0
+python-memcached==1.58
 keystonemiddleware>=4.12.0 # Apache-2.0
 psycopg2==2.7.3.1
 uwsgi==2.0.15