diff --git a/requirements.txt b/requirements.txt
index 9438cdcb..37e5e3da 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@
 # process, which may cause wedges in the gate later.
 six>=1.9.0 # MIT
 oslo.concurrency>=3.8.0 # Apache-2.0
-oslo.config>=3.22.0 # Apache-2.0
+oslo.config>=4.0.0 # Apache-2.0
 oslo.context>=2.14.0 # Apache-2.0
 oslo.messaging>=5.19.0 # Apache-2.0
 oslo.serialization>=1.10.0 # Apache-2.0