Update PHP version to PHP 7.* on Palapa Web Server (PAW)

Would it be possible to update the version of PHP to PHP 7.* on Palapa Web Server (PAW), and if so can someone point me in the right direction? Currently the PHP version is 5.5.11 and I require a version >= 5.6.4 as I would like to do development using Laravel 5.4, and in the future Laravel 5.5.

Thanks,

Tim

via Chebli Mohamed