diff --git a/requirements.txt b/requirements.txt
index 9293816..9704ddc 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,6 +7,6 @@ cliff>=2.2.0 # Apache-2.0
 keystoneauth1>=2.14.0 # Apache-2.0
 oslo.log>=3.11.0 # Apache-2.0
 oslo.serialization>=1.10.0 # Apache-2.0
-oslo.utils>=3.17.0 # Apache-2.0
+oslo.utils>=3.18.0 # Apache-2.0
 requests>=2.10.0 # Apache-2.0
 six>=1.9.0 # MIT