diff --git a/requirements.txt b/requirements.txt
index eb4a1d0..fa2147e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ openstacksdk>=0.8.6 # Apache-2.0
 osc-lib>=0.1.0 # Apache-2.0
 oslo.i18n>=2.1.0 # Apache-2.0
 oslo.serialization>=1.10.0 # Apache-2.0
-oslo.utils>=3.14.0 # Apache-2.0
+oslo.utils>=3.15.0 # Apache-2.0
 python-heatclient>=1.1.0 # Apache-2.0
 PyYAML>=3.1.0 # MIT
 requests>=2.10.0 # Apache-2.0