Updated from global requirements

Change-Id: Ia19c278521b92a84e8ef2b6ef663ef407eb4d121
diff --git a/requirements.txt b/requirements.txt
index c0874a4..07dd1c1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@
 oslo.config!=3.18.0,>=3.14.0 # 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
 six>=1.9.0 # MIT
 fixtures>=3.0.0 # Apache-2.0/BSD
 PyYAML>=3.10.0 # MIT