diff --git a/requirements.txt b/requirements.txt
index 9fc5819e1..6b47f17f5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,16 +1,16 @@
 pbr>=0.5.21,<1.0
 
-Babel>=0.9.6
-netaddr
+Babel>=1.3
+netaddr>=0.7.6
 falcon>=0.1.6,<0.1.7
 jsonschema>=1.3.0,!=1.4.0
-iso8601>=0.1.4
+iso8601>=0.1.8
 msgpack-python
 pymongo>=2.4
-python-keystoneclient>=0.3.2
+python-keystoneclient>=0.4.1
 python-memcached
 simplejson>=2.0.9
 WebOb>=1.2.3,<1.3
 stevedore>=0.10
-six
+six>=1.4.1
 oslo.config>=1.2.0