module.exports = function(grunt) { grunt.initConfig({ pkg: grunt.file.readJSON('package.json'), bumpup: { options: { updateProps: { pkg: 'package.json' } }, setters: { date: function(oldDate, releaseType, options) { return oldDate; }, version: function(oldVersion, releaseType, options) { return oldVersion; }, revision: function(oldVersion, releaseType, options) { return String( Date.now() ); } }, files: [ 'package.json' ] } }); grunt.loadNpmTasks('grunt-bumpup'); grunt.renameTask('bumpup', 'bump'); grunt.registerTask('default', ['bump']); };