diff --git a/package.json b/package.json
index c32433b..135f69a 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "interframe",
-  "version": "1.1.1",
+  "version": "1.2.0",
   "description": "postMessage web api based lightweight interframe communication layer",
   "main": "lib/interframe.commonjs.js",
   "module": "lib/interframe.esmodules.js",