diff --git a/requirements.txt b/requirements.txt
index 7d669094..08b384d6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 # The order of packages is significant, because pip processes them in the order
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
-pbr<2.0,>=1.3
+pbr<2.0,>=1.4
 SQLAlchemy<1.1.0,>=0.9.7
 eventlet>=0.17.4
 keystonemiddleware>=2.0.0
@@ -18,12 +18,12 @@ httplib2>=0.7.5
 lxml>=2.3
 passlib
 python-heatclient>=0.3.0
-python-novaclient>=2.22.0
+python-novaclient>=2.26.0
 python-cinderclient>=1.3.1
 python-keystoneclient>=1.6.0
 python-swiftclient>=2.2.0
 python-designateclient>=1.0.0
-python-neutronclient<3,>=2.3.11
+python-neutronclient<3,>=2.6.0
 iso8601>=0.1.9
 jsonschema!=2.5.0,<3.0.0,>=2.0.0
 Jinja2>=2.6 # BSD License (3 clause)