diff --git a/requirements.txt b/requirements.txt
index cfa32bbb..86d55a98 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 Babel>=1.3
-pbr>=0.5.21,<1.0
+pbr>=0.6,<1.0
 netaddr>=0.7.6
-python-keystoneclient>=0.4.2
+python-keystoneclient>=0.5.0
 requests>=1.1
 six>=1.4.1