diff --git a/requirements.txt b/requirements.txt
index dfaeebd..c534a13 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ cliff>=1.7.0,<=1.9.0
 pbr>=0.6,!=0.7,<1.0
 oslo.i18n>=1.3.0,<1.6.0
 oslo.serialization>=1.0.0,<1.5.0
-oslo.utils<1.5.0
+oslo.utils<1.4.1
 oslo.config<1.10.0
 python-keystoneclient>=0.10.0,<1.4.0
 PyYAML>=3.1.0,<=3.10