diff --git a/requirements.txt b/requirements.txt
index 96f2bc7..4bd80c0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ pbr>=1.6
 Babel>=1.3
 enum34;python_version=='2.7' or python_version=='2.6'
 iso8601>=0.1.9
-oslo.config>=2.3.0 # Apache-2.0
+oslo.config>=2.6.0 # Apache-2.0
 oslo.i18n>=1.5.0 # Apache-2.0
 oslo.utils!=2.6.0,>=2.4.0 # Apache-2.0
 six>=1.9.0