Script for overriding the default jquery injected in a theme by wordpress

wp-jquery-override.php

//Replace the default WordPress jQuery script with a different one
function modify_jquery() {
    if (!is_admin()) {
        wp_deregister_script('jquery');
        wp_register_script('jquery', 'https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.min.js', false, '1.11.3');
        wp_enqueue_script('jquery');
    }
}