php artisan down not working

[Pankraz01]

Hey guys, I followed the update guide for Version 1.3.0, but I ran into an error if I type in php artisan down:

root@server ~ # php artisan down
PHP Parse error:  syntax error, unexpected token "match" in /root/vendor/phpunit/phpunit/src/Framework/MockObject/Builder/ParametersMatch.php on line 17

so i checked the file and this is in it:

/**
 * Builder interface for parameter matchers.
 */
interface ParametersMatch extends Match
{
    /**
     * Sets the parameters to match for, each parameter to this function will
     * be part of match. To perform specific matches or constraints create a

seems right to me, but it prevents me from updating the panel

[Pankraz01]

Fixed it by updating to composer version 2 with composer self-update --2