Run a specific action whenever community role is updated

gistfile1.php

add_action('um_after_user_role_is_updated', 'mycustom_role_change_action', 10, 2 );
function mycustom_role_change_action( $user_id, $new_role ) {
	if ( $new_role == 'admin' ) {
		die('You can not be a community admin');
	}
}