Updated from global requirements

Change-Id: I37380edbf53876d6088b6ec7f628e6737dbcb399
diff --git a/requirements.txt b/requirements.txt
index ba2f2d5..94f3073 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@
 hacking>=1.0.0 # Apache-2.0
 pbr!=2.1.0,>=2.0.0 # Apache-2.0
 oslo.log>=3.30.0 # Apache-2.0
-oslo.config>=4.6.0 # Apache-2.0
+oslo.config>=5.1.0 # Apache-2.0
 oslo.policy>=1.23.0 # Apache-2.0
 tempest>=17.1.0 # Apache-2.0
 stevedore>=1.20.0 # Apache-2.0