diff --git a/package.json b/package.json
index 50e02c1..54d4c92 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@pushrocks/smartpromise",
   "private": false,
-  "version": "3.1.9",
+  "version": "4.0.0",
   "description": "simple promises and Deferred constructs",
   "main": "dist_ts/index.js",
   "typings": "dist_ts/index.d.ts",