diff --git a/requirements.txt b/requirements.txt
index 5688670..9ef5a70 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,5 +8,5 @@ six>=1.10.0 # MIT
 Babel!=2.4.0,>=2.3.4 # BSD
 oslo.i18n>=3.15.3 # Apache-2.0
 oslo.log>=3.30.0 # Apache-2.0
-oslo.utils>=3.31.0 # Apache-2.0
+oslo.utils>=3.33.0 # Apache-2.0
 keystoneauth1>=3.3.0 # Apache-2.0