diff --git a/setup.cfg b/setup.cfg
index d5ea4568..9c2a9b29 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,6 +1,6 @@
 [metadata]
 name = ec2-api
-version = 3.0.0
+version = 4.0.0
 summary = OpenStack Ec2api Service
 description-file =
     README.rst