diff --git a/requirements.txt b/requirements.txt
index 3995c9a0c8..1dfd2466c1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,7 +10,7 @@ keystoneauth1>=2.18.0 # Apache-2.0
 openstacksdk>=0.9.13 # Apache-2.0
 osc-lib>=1.2.0 # Apache-2.0
 oslo.i18n>=2.1.0 # Apache-2.0
-oslo.utils>=3.18.0 # Apache-2.0
+oslo.utils>=3.20.0 # Apache-2.0
 python-glanceclient>=2.5.0 # Apache-2.0
 python-keystoneclient>=3.8.0 # Apache-2.0
 python-novaclient>=7.1.0 # Apache-2.0