diff --git a/requirements.txt b/requirements.txt
index 7d4b2dbdb..378ac2d17 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,7 +11,7 @@ oslo.serialization>=1.10.0 # Apache-2.0
 oslo.i18n>=2.1.0 # Apache-2.0
 oslo.privsep>=1.9.0 # Apache-2.0
 oslo.service>=1.10.0 # Apache-2.0
-oslo.utils>=3.14.0 # Apache-2.0
+oslo.utils>=3.15.0 # Apache-2.0
 requests>=2.10.0 # Apache-2.0
 retrying!=1.3.0,>=1.2.3 # Apache-2.0
 six>=1.9.0 # MIT