diff --git a/test-requirements.txt b/test-requirements.txt
index 827b63c9..4126614b 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -12,7 +12,7 @@ fixtures>=3.0.0 # Apache-2.0/BSD
 mock>=2.0 # BSD
 oslo.config>=3.12.0 # Apache-2.0
 oslosphinx!=3.4.0,>=2.5.0 # Apache-2.0
-oslo.utils>=3.14.0 # Apache-2.0
+oslo.utils>=3.15.0 # Apache-2.0
 oslotest>=1.10.0 # Apache-2.0
 os-testr>=0.7.0 # Apache-2.0
 betamax>=0.7.0 # Apache-2.0