diff --git a/requirements.txt b/requirements.txt
index 3e49cba..9d3cd19 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,6 +6,6 @@ pbr!=2.1.0,>=2.0.0 # Apache-2.0
 Babel!=2.4.0,>=2.3.4 # BSD
 cliff!=2.9.0,>=2.8.0 # Apache-2.0
 osc-lib>=1.7.0 # Apache-2.0
-oslo.utils>=3.28.0 # Apache-2.0
+oslo.utils>=3.31.0 # Apache-2.0
 keystoneauth1>=3.2.0 # Apache-2.0
 iso8601>=0.1.11 # MIT