diff --git a/requirements.txt b/requirements.txt
index e9c847c1..3a0e365a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -22,7 +22,7 @@ oslo.policy>=0.5.0 # Apache-2.0
 oslo.rootwrap>=2.0.0 # Apache-2.0
 oslo.service>=0.1.0 # Apache-2.0
 PasteDeploy>=1.5.0
-pbr<2.0,>=1.3
+pbr<2.0,>=1.4
 pecan>=0.8.0
 oslo.messaging!=1.17.0,!=1.17.1,>=1.16.0 # Apache-2.0
 oslo.middleware>=2.4.0 # Apache-2.0
@@ -32,8 +32,8 @@ pysnmp<5.0.0,>=4.2.1
 python-ceilometerclient>=1.0.13
 python-glanceclient>=0.18.0
 python-keystoneclient>=1.6.0
-python-neutronclient<3,>=2.3.11
-python-novaclient>=2.22.0
+python-neutronclient<3,>=2.6.0
+python-novaclient>=2.26.0
 python-swiftclient>=2.2.0
 pytz>=2013.6
 PyYAML>=3.1.0