diff --git a/requirements.txt b/requirements.txt
index a7be9e8c..5d016a71 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ PrettyTable<0.8,>=0.7.1 # BSD
 requests>=2.14.2 # Apache-2.0
 simplejson>=3.5.1 # MIT
 oslo.i18n>=3.15.3 # Apache-2.0
-oslo.utils>=3.28.0 # Apache-2.0
+oslo.utils>=3.31.0 # Apache-2.0
 Babel!=2.4.0,>=2.3.4 # BSD
 keystoneauth1>=3.2.0 # Apache-2.0
 six>=1.9.0 # MIT