diff --git a/Converter/AbstractPackageConverter.php b/Converter/AbstractPackageConverter.php
index 7572a72e..96606255 100644
--- a/Converter/AbstractPackageConverter.php
+++ b/Converter/AbstractPackageConverter.php
@@ -152,7 +152,7 @@ protected function convertDependencies(array $asset, $assetKey, array &$composer
      *
      * @return string[] The new dependency and the new version
      */
-    protected function convertDependency($dependency, $version, array &$vcsRepos = array(), array $composer)
+    protected function convertDependency($dependency, $version, array &$vcsRepos, array $composer)
     {
         list($dependency, $version) = PackageUtil::checkUrlVersion($this->assetType, $dependency, $version, $vcsRepos, $composer);
         list($dependency, $version) = PackageUtil::checkAliasVersion($this->assetType, $dependency, $version);
diff --git a/Converter/BowerPackageConverter.php b/Converter/BowerPackageConverter.php
index bc245adc..f980c584 100644
--- a/Converter/BowerPackageConverter.php
+++ b/Converter/BowerPackageConverter.php
@@ -58,7 +58,7 @@ protected function getMapExtras()
     /**
      * {@inheritdoc}
      */
-    protected function convertDependency($dependency, $version, array &$vcsRepos = array(), array $composer)
+    protected function convertDependency($dependency, $version, array &$vcsRepos, array $composer)
     {
         list($dependency, $version) = $this->checkGithubRepositoryVersion($dependency, $version);
 
diff --git a/Converter/PackageUtil.php b/Converter/PackageUtil.php
index 619bfa66..ac819b36 100644
--- a/Converter/PackageUtil.php
+++ b/Converter/PackageUtil.php
@@ -36,7 +36,7 @@ abstract class PackageUtil
      *
      * @return string[] The new dependency and the new version
      */
-    public static function checkUrlVersion(AssetTypeInterface $assetType, $dependency, $version, array &$vcsRepos = array(), array $composer)
+    public static function checkUrlVersion(AssetTypeInterface $assetType, $dependency, $version, array &$vcsRepos, array $composer)
     {
         if (preg_match('/(\:\/\/)|\@/', $version)) {
             list($url, $version) = static::splitUrlVersion($version);