protected function getVersion()
    {
        // Get version from tag
        $cmd = new Command('git');
        $cmd = $cmd->arg('tag')
            ->execute();
        $output = explode(PHP_EOL, trim($cmd->getOutput()));
        $currentVersion = '0.0.0';
        foreach ($output as $tag) {
            if (preg_match(SemanticVersion::REGEX, $tag)) {
                if (version_compare($currentVersion, $tag, '<')) {
                    $currentVersion = $tag;
                }
            }
        }
        return new SemanticVersion($currentVersion);
    }