Unexpected token error for rest parameter

i am trying to use es6 rest parameters
`
class mediasController extends lib.baseClasses.apiControllerAsyncBase().apiControllerAsync {
    constructor(...args) {
        super(...args);
        this.xyz = {};
    }
`

but when i run the code it gives me error as "unexpected token .." ,i am using node version 4.2.6, please provide me with the solution of the same.
