diff --git a/requirements.txt b/requirements.txt
index fe212961..8d2af51e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@
 pbr>=1.6 # Apache-2.0
 PrettyTable<0.8,>=0.7 # BSD
 python-glanceclient>=1.2.0 # Apache-2.0
-python-keystoneclient!=1.8.0,>=1.6.0 # Apache-2.0
+python-keystoneclient!=1.8.0,!=2.1.0,>=1.6.0 # Apache-2.0
 httplib2>=0.7.5 # MIT
 iso8601>=0.1.9 # MIT
 six>=1.9.0 # MIT