var connect = require('connect');
var serveStatic = require('serve-static');
connect().use(serveStatic(__dirname)).listen(3000, function(){
    console.log('Server running on 3000...');
});

var connect = require('connect');
var serveStatic = require('serve-static');
connect().use(serveStatic(__dirname)).listen(process.env.PORT || 5000, function(){
    console.log('Server running on 5000...');
});

Update Heroku port