diff --git a/requirements.txt b/requirements.txt
index 0b92d3c8af..2adfead283 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -19,7 +19,7 @@ passlib>=1.6 # BSD
 python-heatclient>=1.5.0 # Apache-2.0
 python-novaclient!=2.33.0,>=2.29.0 # Apache-2.0
 python-cinderclient!=1.7.0,!=1.7.1,>=1.6.0 # Apache-2.0
-python-keystoneclient!=2.1.0,>=2.0.0 # Apache-2.0
+python-keystoneclient>=3.6.0 # Apache-2.0
 python-swiftclient>=2.2.0 # Apache-2.0
 python-designateclient>=1.5.0 # Apache-2.0
 python-neutronclient>=5.1.0 # Apache-2.0