diff --git a/requirements.txt b/requirements.txt
index c7ac2cf98..940d9eab7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ eventlet>=0.16.1
 iso8601>=0.1.9
 netifaces>=0.10.4
 ordereddict
-oslo.config>=1.6.0  # Apache-2.0
+oslo.config>=1.9.0  # Apache-2.0
 oslo.concurrency>=1.4.1         # Apache-2.0
 oslo.i18n>=1.3.0  # Apache-2.0
 oslo.serialization>=1.2.0               # Apache-2.0