diff --git a/requirements.txt b/requirements.txt
index 6a6e8ee77..055bf42b5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ Babel>=1.3
 iso8601>=0.1.8
 netaddr>=0.7.6
 oslo.config>=1.2.0
-pbr>=0.5.21,<1.0
+pbr>=0.6,<1.0
 PrettyTable>=0.7,<0.8
 requests>=1.1
-six>=1.4.1
+six>=1.5.2
diff --git a/test-requirements.txt b/test-requirements.txt
index 347465ead..2cdbba92e 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -8,7 +8,7 @@ mock>=1.0
 mox3>=0.7.0
 pycrypto>=2.6
 sphinx>=1.1.2,<1.2
-testrepository>=0.0.17
+testrepository>=0.0.18
 testresources>=0.2.4
-testtools>=0.9.32
-WebOb>=1.2.3,<1.3
+testtools>=0.9.34
+WebOb>=1.2.3