diff --git a/package.json b/package.json
index 7c9893d8c2..7e375af4db 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "angular",
-  "version": "2.0.0-alpha.19",
+  "version": "2.0.0-alpha.20",
   "description": "Angular 2 - a web framework for modern web apps",
   "homepage": "https://github.com/angular/angular",
   "bugs": "https://github.com/angular/angular/issues",