## composer self update ```bash which composer #In my case it returns /usr/bin/composer; # This will download the composer-setup.php file into the current working directory; php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');" #This will create the composer.phar file into the current working directory; php composer-setup.php. #Replace /usr/bin/composer with the result returned from step 1. sudo mv composer.phar /usr/bin/composer composer self-update ``` ## Install SEO bundle ```bash composer require symfony-cmf/seo-bundle ``` - [symfony SeoBundle]( https://symfony.com/doc/current/cmf/bundles/seo/index.html) - [Building Sitemaps](https://symfony.com/doc/current/cmf/bundles/seo/sitemap.html)