diff --git a/requirements.txt b/requirements.txt
index eee138a465..6f9742edf0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 pbr>=0.5.21,<1.0
 cliff>=1.4.3
-keyring>=1.6.1,<2.0
+keyring>=1.6.1,<2.0,>=2.1
 pycrypto>=2.6
 python-glanceclient>=0.9.0
 python-keystoneclient>=0.4.1