diff --git a/requirements.txt b/requirements.txt
index 3ae40fdd..cc6796d3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ google-api-python-client >= 1.7.10
 msgpack-python >= 0.5.6, < 0.6.0
 networkx==1.11
 kazoo >= 2.6.1, < 3.0.0
-oslo.utils>=3.41.0, <4.2.0
+oslo.utils>=3.41.0, <4.7.0
 pbr >= 5.4.2, < 6.0.0
 protobuf >= 3.9.0, < 4.0.0
 protobuf3-to-dict==0.1.5