diff --git a/package.json b/package.json
index d89efeeb..4f4c7057 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "claygl-next",
-  "version": "2.0.0-alpha.3",
+  "version": "2.0.0-alpha.4",
   "description": "A 3D graphic library",
   "keywords": [
     "graphic",