diff --git a/test-requirements.txt b/test-requirements.txt
index 795b712a3d..31551f51d4 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -12,7 +12,7 @@ python-ceilometerclient>=2.2.1 # Apache-2.0
 python-cinderclient>=1.3.1 # Apache-2.0
 python-glanceclient>=1.2.0 # Apache-2.0
 python-heatclient>=0.6.0 # 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
 python-neutronclient>=2.6.0 # Apache-2.0
 python-novaclient!=2.33.0,>=2.29.0 # Apache-2.0
 python-swiftclient>=2.2.0 # Apache-2.0