diff --git a/requirements.txt b/requirements.txt
index 370fe00..abb3f8a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@
 # process, which may cause wedges in the gate later.
 pbr!=2.1.0,>=2.0.0 # Apache-2.0
 Django<1.10,>=1.8 # BSD
-oslo.config>=3.22.0 # Apache-2.0
+oslo.config>=4.0.0 # Apache-2.0
 oslo.policy>=1.17.0 # Apache-2.0
 python-keystoneclient>=3.8.0 # Apache-2.0
 keystoneauth1>=2.20.0 # Apache-2.0