Bonsoir j'ai cette erreur c'est quoi la solution!!

C:\wamp64\www\Symfony>php composer.phar self-update Updating to version ded485d.


[Symfony\Component\Console\Exception\RuntimeException]
Too many arguments, expected arguments "command" "version".


self-update [-r|--rollback] [--clean-backups] [--no-progress] [--update-keys] [--stable] [--preview] [--snapshot] [--] [<version>]