* To list packages composer show -i * To test upgrade of a lib with composer: Remove entry in composer.lock Edit composer.json to change version to "x.y.z" composer -v update --root-reqs --no-dev --no-autoloader --dry-run ccampbell/chromephp * To upgrade a lib with composer: Remove entry in composer.lock Edit composer.json to change version to "x.y.z" composer -v update --root-reqs --no-dev --no-autoloader ccampbell/chromephp