diff --git a/requirements.txt b/requirements.txt
index db29e2c..6629585 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,5 +7,5 @@ fixtures>=0.3.14
 iso8601>=0.1.9
 jsonschema>=2.0.0,<3.0.0
 httplib2>=0.7.5
-six>=1.7.0
-oslo.log>=0.1.0  # Apache-2.0
+six>=1.9.0
+oslo.log>=0.4.0  # Apache-2.0