diff --git a/requirements.txt b/requirements.txt
index cf377607..b3cf435f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,4 +12,4 @@ six>=1.9.0 # MIT
 Babel>=2.3.4 # BSD
 
 oslo.i18n>=2.1.0 # Apache-2.0
-oslo.utils>=3.5.0 # Apache-2.0
+oslo.utils>=3.9.0 # Apache-2.0