diff --git a/requirements.txt b/requirements.txt
index 88f5f61..1637939 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@
 oslo.log>=3.30.0 # Apache-2.0
 oslo.i18n>=3.15.3 # Apache-2.0
 oslo.config>=4.6.0 # Apache-2.0
-oslo.utils>=3.28.0 # Apache-2.0
+oslo.utils>=3.31.0 # Apache-2.0
 enum34>=1.0.4;python_version=='2.7' or python_version=='2.6' or python_version=='3.3' # BSD
 cffi>=1.1.2 # MIT
 eventlet!=0.18.3,!=0.20.1,<0.21.0,>=0.18.2 # MIT