diff --git a/requirements.txt b/requirements.txt
index b3c87e2c..26a2f548 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ PrettyTable<0.8,>=0.7 # BSD
 requests>=2.10.0 # Apache-2.0
 simplejson>=2.2.0 # MIT
 oslo.i18n>=2.1.0 # Apache-2.0
-oslo.utils>=3.5.0 # Apache-2.0
+oslo.utils>=3.9.0 # Apache-2.0
 Babel>=2.3.4 # BSD
 keystoneauth1>=2.1.0 # Apache-2.0
 six>=1.9.0 # MIT