diff --git a/requirements.txt b/requirements.txt
index 621ce72..f24a0c5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,16 +1,16 @@
 # 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>=0.6,!=0.7,<1.0
+pbr>=0.11,<2.0
 
 anyjson>=0.3.3
 argparse
 eventlet>=0.17.3
-python-keystoneclient>=1.1.0
+python-keystoneclient>=1.6.0
 python-heatclient>=0.3.0
-requests>=2.2.0,!=2.4.0
+requests>=2.5.2
 iso8601>=0.1.9
 lxml>=2.3
-oslo.config>=1.9.3  # Apache-2.0
+oslo.config>=1.11.0  # Apache-2.0
 six>=1.9.0
 dogpile.cache>=0.5.3