Which PHP version is used by Laravel 5.0

Hi I am doing with Laravel 5.0. Its all fine but when I deploy my application to server its get partly dysfunctional (e.g. return redirect('action'); is giving error) on production server but working fine on localhost. On my local environment I have PHP 5.6.3 and on production its PHP 5.4.10. Can anybody tell me with which version of PHP Laravel 5.0 is compatible ?