Updating It's assumed that Bookstack was installed by the Ubuntu script. Very important, as always backup your Bookstack instance by default Bookstack is installed under /var/www/bookstack , if that wasn't changed, then go there try to pull the latest changes: git pull origin release if that fails because there are updated files in the directory, run: git config core.fileMode false then: composer install --no-dev last one: php artisan migrate Also don't forget to clear cache: php artisan cache:clear php artisan config:clear php artisan view:clear Sources: https://www.bookstackapp.com/docs/admin/updates/ https://old.reddit.com/r/BookStack/comments/vtht1f/need_help_updating_bookstack_22042_to_22062/