diff --git a/package.json b/package.json
index a5d9a1c..a96e905 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "bitcoinjs-lib",
-  "version": "1.3.1",
+  "version": "1.4.0",
   "description": "Client-side Bitcoin JavaScript library",
   "main": "./src/index.js",
   "keywords": [