diff --git a/requirements.txt b/requirements.txt
index e4f34660..44e1f8f0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,14 +3,14 @@
 # process, which may cause wedges in the gate later.
 
 Babel>=2.3.4 # BSD
-pbr>=1.6 # Apache-2.0
+pbr>=1.8 # Apache-2.0
 cliff>=2.2.0 # Apache-2.0
 iso8601>=0.1.11 # MIT
 osc-lib>=1.2.0 # Apache-2.0
 PrettyTable<0.8,>=0.7.1 # BSD
 oslo.i18n>=2.1.0 # Apache-2.0
 oslo.serialization>=1.10.0 # Apache-2.0
-oslo.utils>=3.17.0 # Apache-2.0
+oslo.utils>=3.18.0 # Apache-2.0
 keystoneauth1>=2.14.0 # Apache-2.0
 python-swiftclient>=2.2.0 # Apache-2.0
 PyYAML>=3.10.0 # MIT