diff --git a/requirements.txt b/requirements.txt
index bbadefb7..ba46f88c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@
 # process, which may cause wedges in the gate later.
 cliff!=1.16.0,>=1.15.0 # Apache-2.0
 jsonschema!=2.5.0,<3.0.0,>=2.0.0 # MIT
-oslo.utils>=3.4.0 # Apache-2.0
+oslo.utils>=3.5.0 # Apache-2.0
 pbr>=1.6 # Apache-2.0
 python-keystoneclient!=1.8.0,!=2.1.0,>=1.6.0 # Apache-2.0
 requests!=2.9.0,>=2.8.1 # Apache-2.0