diff --git a/requirements.txt b/requirements.txt
index ea8107c..0fe6992 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,4 +10,4 @@ six>=1.9.0 # MIT
 Babel>=2.3.4 # BSD
 oslo.i18n>=2.1.0 # Apache-2.0
 oslo.log>=3.11.0 # Apache-2.0
-oslo.utils>=3.18.0 # Apache-2.0
+oslo.utils>=3.20.0 # Apache-2.0