diff --git a/src/Bowerphp/Package/PackageInterface.php b/src/Bowerphp/Package/PackageInterface.php
index 00cc2c6..c6dea40 100644
--- a/src/Bowerphp/Package/PackageInterface.php
+++ b/src/Bowerphp/Package/PackageInterface.php
@@ -48,14 +48,14 @@ public function setRequiredVersion($version);
      * Returns a set of links to packages which need to be installed before
      * this package can be installed
      *
-     * @return array An array of package links defining required packages
+     * @return array|null An array of package links defining required packages
      */
     public function getRequires();
 
     /**
      * Set the required packages
      *
-     * @param array $requires A set of package links
+     * @param array|null $requires A set of package links
      */
     public function setRequires(array $requires = null);
 
diff --git a/src/Bowerphp/Util/Filesystem.php b/src/Bowerphp/Util/Filesystem.php
index 3c9e409..f185bcc 100644
--- a/src/Bowerphp/Util/Filesystem.php
+++ b/src/Bowerphp/Util/Filesystem.php
@@ -44,6 +44,6 @@ public function read($filename)
      */
     public function write($filename, $content, $mode = 0644)
     {
-        $this->dumpFile($filename, $content, $mode);
+        $this->dumpFile($filename, $content);
     }
 }
diff --git a/tests/Bowerphp/Test/Config/ConfigTest.php b/tests/Bowerphp/Test/Config/ConfigTest.php
index bbfaad8..6c1e707 100644
--- a/tests/Bowerphp/Test/Config/ConfigTest.php
+++ b/tests/Bowerphp/Test/Config/ConfigTest.php
@@ -192,11 +192,11 @@ public function testUpdateBowerJsonFile()
 
         $config = new Config($this->filesystem);
 
-        $this->assertEquals(0, $config->updateBowerJsonFile($package, '*'));
+        $this->assertEquals(0, $config->updateBowerJsonFile($package));
 
         $config->setSaveToBowerJsonFile(true);
 
-        $this->assertEquals(123, $config->updateBowerJsonFile($package, '*'));
+        $this->assertEquals(123, $config->updateBowerJsonFile($package));
     }
 
     public function testUpdateBowerJsonFile2()