diff --git a/Gruntfile.js b/Gruntfile.js
index 4b4b85b..c7b1020 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -218,6 +218,7 @@ module.exports = function(grunt) {
     },
     nodewebkit: {
       options: {
+        version : "0.11.5",
         build_dir: './dest/desktop/', // destination folder of releases.
         mac: true,
         win: true,
@@ -256,4 +257,5 @@ module.exports = function(grunt) {
 
   // Start webserver on src folder, in debug mode
   grunt.registerTask('serve-debug', ['express:debug', 'open:debug', 'express-keepalive']);
+  grunt.registerTask('play', ['serve-debug']);
 };
diff --git a/package.json b/package.json
index 6ea20e2..ae16f0c 100644
--- a/package.json
+++ b/package.json
@@ -3,7 +3,7 @@
   "name": "piskel",
   "main": "./dest/index.html",
   "description": "Web based 2d animations editor",
-  "version": "0.4.2",
+  "version": "0.5.0",
   "homepage": "http://github.com/juliandescottes/piskel",
   "repository": {
     "type": "git",
@@ -34,8 +34,7 @@
     "karma-chrome-launcher": "^0.1.4",
     "karma-jasmine": "^0.3.5",
     "karma-phantomjs-launcher": "^0.1.4",
-    "load-grunt-tasks": "^3.1.0",
-    "nodewebkit": "^0.11.6"
+    "load-grunt-tasks": "^3.1.0"
   },
   "window": {
     "title": "Piskel",