Updated from global requirements

OpenStack Proposal Bot · OpenStack Proposal Bot · commit 753c95c171db · 2016-08-30T03:53:52.000Z
Change-Id: Iffff9c4e02004fa831b142164b2aa7fb602a6c07
diff --git a/requirements.txt b/requirements.txt
@@ -4,5 +4,5 @@
 pbr>=1.6 # Apache-2.0
 six>=1.9.0 # MIT
 stevedore>=1.16.0 # Apache-2.0
-os-client-config!=1.19.0,!=1.19.1,!=1.20.0,!=1.20.1,>=1.13.1 # Apache-2.0
+os-client-config!=1.19.0,!=1.19.1,!=1.20.0,!=1.20.1,!=1.21.0,>=1.13.1 # Apache-2.0
 keystoneauth1>=2.10.0 # Apache-2.0
