diff --git a/requirements.txt b/requirements.txt
index 6c5e1aae..b99be0c2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@
 pbr!=2.1.0,>=2.0.0 # Apache-2.0
 PrettyTable<0.8,>=0.7.1 # BSD
 python-openstackclient!=3.10.0,>=3.3.0 # Apache-2.0
-keystoneauth1>=2.20.0 # Apache-2.0
+keystoneauth1>=2.21.0 # Apache-2.0
 osc-lib>=1.5.1 # Apache-2.0
 oslo.i18n!=3.15.2,>=2.1.0 # Apache-2.0
 oslo.utils>=3.20.0 # Apache-2.0