Three steps to start using ES6 in gulpfile Make sure babel is set as a dependency in package.json Rename gulpfile.js to gulpfile.babel.js Start using ES6 For live example see: https://github.com/fatezh/fatezh/blob/7425122fe861f38dfb4fd3a58c4e0af570b171de/gulpfile.babel.js https://github.com/fatezh/fatezh/tree/7425122fe861f38dfb4fd3a58c4e0af570b171de/tasks