diff --git a/package.json b/package.json
index b500d13..28ac42f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "uast-viewer",
-  "version": "0.3.0",
+  "version": "0.4.0",
   "description": "reusable component for displaying uast",
   "homepage": "https://github.com/bblfsh/uast-viewer",
   "main": "lib/index.js",