diff --git a/requirements.txt b/requirements.txt
index 81d0ec0..960c35d 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,>=1.4
+pbr<2.0,>=1.6
 Babel>=1.3
 argparse
 PrettyTable<0.8,>=0.7
@@ -9,5 +9,5 @@ python-keystoneclient>=1.6.0
 requests>=2.5.2
 warlock<2,>=1.0.1
 six>=1.9.0
-oslo.utils>=1.9.0 # Apache-2.0
+oslo.utils>=2.0.0 # Apache-2.0
 oslo.i18n>=1.5.0 # Apache-2.0