diff --git a/requirements.txt b/requirements.txt
index 875b774f8..221c1b190 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ argparse
 Babel>=1.3
 iso8601>=0.1.9
 netaddr>=0.7.12
-oslo.config>=1.4.0  # Apache-2.0
+oslo.config>=1.6.0  # Apache-2.0
 oslo.i18n>=1.0.0  # Apache-2.0
 oslo.serialization>=1.0.0               # Apache-2.0
 oslo.utils>=1.1.0                       # Apache-2.0