diff --git a/requirements.txt b/requirements.txt
index 8cd7cef175..682527279a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,6 +12,6 @@ osc-lib>=1.2.0 # Apache-2.0
 oslo.i18n>=2.1.0 # Apache-2.0
 oslo.utils>=3.16.0 # Apache-2.0
 python-glanceclient>=2.5.0 # Apache-2.0
-python-keystoneclient!=2.1.0,>=2.0.0 # Apache-2.0
+python-keystoneclient>=3.6.0 # 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