[Koha] 'Codename' value from '20.11' to '21.05

Good morning, I received the following message after apt-get update *E: Repository 'http://debian.koha-community.org/koha <http://debian.koha-community.org/koha> stable InRelease' changed i ts 'Codename' value from '20.11' to '21.05'N: This must be accepted explicitly before updates for this repository can be applied. See apt-secure(8) manpage for details.* Should this be fixed? What correction is needed? thanks Victor