diff --git a/requirements.txt b/requirements.txt
index a08a437..0bddca3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-pbr>=0.5.21,<1.0
+pbr>=0.6,<1.0
 anyjson>=0.3.3
 httplib2>=0.7.5
 jsonschema>=2.0.0,<3.0.0
@@ -8,18 +8,18 @@
 paramiko>=1.9.0
 netaddr>=0.7.6
 python-glanceclient>=0.9.0
-python-keystoneclient>=0.4.2
+python-keystoneclient>=0.6.0
 python-novaclient>=2.15.0
-python-neutronclient>=2.3.3,<3
+python-neutronclient>=2.3.4,<3
 python-cinderclient>=1.0.6
 python-heatclient>=0.2.3
-python-savannaclient>=0.4.1
-python-swiftclient>=1.5
+python-savannaclient>=0.5.0
+python-swiftclient>=1.6
 testresources>=0.2.4
 keyring>=1.6.1,<2.0,>=2.1
-testrepository>=0.0.17
+testrepository>=0.0.18
 oslo.config>=1.2.0
-six>=1.4.1
+six>=1.5.2
 iso8601>=0.1.8
 fixtures>=0.3.14
 testscenarios>=0.4