diff --git a/Tests/Installer/AssetInstallerTest.php b/Tests/Installer/AssetInstallerTest.php
index 97e38e6a..a24d64c7 100644
--- a/Tests/Installer/AssetInstallerTest.php
+++ b/Tests/Installer/AssetInstallerTest.php
@@ -239,7 +239,6 @@ protected function createInstaller()
     protected function createRootPackageMock()
     {
         $package = $this->getMockBuilder('Composer\Package\RootPackageInterface')
-            ->setConstructorArgs(array(md5(mt_rand()), '1.0.0.0', '1.0.0'))
             ->getMock()
         ;
 
diff --git a/Tests/Installer/BowerInstallerTest.php b/Tests/Installer/BowerInstallerTest.php
index 986956af..58658bf1 100644
--- a/Tests/Installer/BowerInstallerTest.php
+++ b/Tests/Installer/BowerInstallerTest.php
@@ -525,7 +525,6 @@ protected function createPackageMock(array $ignoreFiles = array())
     protected function createRootPackageMock(array $mainFiles = array())
     {
         $package = $this->getMockBuilder('Composer\Package\RootPackageInterface')
-            ->setConstructorArgs(array(md5(mt_rand()), '1.0.0.0', '1.0.0'))
             ->getMock()
         ;