diff --git a/requirements.txt b/requirements.txt
index 8adf14716c..23754ba1ca 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -23,7 +23,7 @@ stevedore>=1.1.0  # Apache-2.0
 pysendfile==2.0.0
 websockify>=0.6.0,<0.7
 oslo.concurrency>=0.3.0  # Apache-2.0
-oslo.config>=1.4.0  # Apache-2.0
+oslo.config>=1.6.0  # Apache-2.0
 oslo.db>=1.3.0  # Apache-2.0
 oslo.rootwrap>=1.3.0
 oslo.i18n>=1.0.0  # Apache-2.0