diff --git a/package.json b/package.json
index 869b9a786..9147ae73f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "xo-server",
-  "version": "3.9.1",
+  "version": "4.0.0",
   "license": "AGPL-3.0",
   "description": "Server part of Xen-Orchestra",
   "keywords": [