diff --git a/package.json b/package.json
index 3d4c169..1dd6823 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ethereumjs-wallet",
-  "version": "0.3.0",
+  "version": "0.4.0",
   "description": "Utilities for handling Ethereum keys",
   "main": "index.js",
   "scripts": {