https://github.com/drupal-composer/drupal-project#updating-drupal-core ``` composer update drupal/core webflo/drupal-core-require-dev symfony/* --with-dependencies ``` Since the change to webflo/drupal-core-require-dev it is now nessasary to specify that when updating core or nothing happens https://github.com/webflo/drupal-core-require-dev/issues/3#issuecomment-386119186 Suggest changing this in the documentation