diff --git a/requirements.txt b/requirements.txt
index 64c4f187..3469a132 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@
 # process, which may cause wedges in the gate later.
 cliff>=2.3.0 # Apache-2.0
 osc-lib>=1.2.0 # Apache-2.0
-oslo.utils>=3.18.0 # Apache-2.0
+oslo.utils>=3.20.0 # Apache-2.0
 oslo.i18n>=2.1.0 # Apache-2.0
 pbr>=1.8 # Apache-2.0
 python-keystoneclient>=3.8.0 # Apache-2.0