diff --git a/requirements.txt b/requirements.txt
index 9411b08e..673e8554 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ anyjson>=0.3.3 # BSD
 eventlet!=0.18.3,<0.21.0,>=0.18.2 # MIT
 GitPython>=1.0.1 # BSD License (3 clause)
 kombu!=4.0.2,>=4.0.0 # BSD
-oslo.config>=3.22.0 # Apache-2.0
+oslo.config>=4.0.0 # Apache-2.0
 oslo.log>=3.22.0 # Apache-2.0
 oslo.service>=1.10.0 # Apache-2.0
 oslo.utils>=3.20.0 # Apache-2.0