diff --git a/updater.phar b/updater.phar
index cbf662b5..1aae4ea2 100755
Binary files a/updater.phar and b/updater.phar differ
diff --git a/vendor/composer/ClassLoader.php b/vendor/composer/ClassLoader.php
index afef3fa2..a72151c7 100644
--- a/vendor/composer/ClassLoader.php
+++ b/vendor/composer/ClassLoader.php
@@ -42,6 +42,9 @@
  */
 class ClassLoader
 {
+    /** @var \Closure(string):void */
+    private static $includeFile;
+
     /** @var ?string */
     private $vendorDir;
 
@@ -106,6 +109,7 @@ class ClassLoader
     public function __construct($vendorDir = null)
     {
         $this->vendorDir = $vendorDir;
+        self::initializeIncludeClosure();
     }
 
     /**
@@ -425,7 +429,8 @@ public function unregister()
     public function loadClass($class)
     {
         if ($file = $this->findFile($class)) {
-            includeFile($file);
+            $includeFile = self::$includeFile;
+            $includeFile($file);
 
             return true;
         }
@@ -555,18 +560,26 @@ private function findFileWithExtension($class, $ext)
 
         return false;
     }
-}
 
-/**
- * Scope isolated include.
- *
- * Prevents access to $this/self from included files.
- *
- * @param  string $file
- * @return void
- * @private
- */
-function includeFile($file)
-{
-    include $file;
+    /**
+     * @return void
+     */
+    private static function initializeIncludeClosure()
+    {
+        if (self::$includeFile !== null) {
+            return;
+        }
+
+        /**
+         * Scope isolated include.
+         *
+         * Prevents access to $this/self from included files.
+         *
+         * @param  string $file
+         * @return void
+         */
+        self::$includeFile = \Closure::bind(static function($file) {
+            include $file;
+        }, null, null);
+    }
 }
diff --git a/vendor/composer/autoload_real.php b/vendor/composer/autoload_real.php
index 1fedf1c1..8f1fce5f 100644
--- a/vendor/composer/autoload_real.php
+++ b/vendor/composer/autoload_real.php
@@ -34,25 +34,18 @@ public static function getLoader()
         $loader->setClassMapAuthoritative(true);
         $loader->register(true);
 
-        $includeFiles = \Composer\Autoload\ComposerStaticInitd7f5ddc48e4715174279359c16c76340::$files;
-        foreach ($includeFiles as $fileIdentifier => $file) {
-            composerRequired7f5ddc48e4715174279359c16c76340($fileIdentifier, $file);
+        $filesToLoad = \Composer\Autoload\ComposerStaticInitd7f5ddc48e4715174279359c16c76340::$files;
+        $requireFile = \Closure::bind(static function ($fileIdentifier, $file) {
+            if (empty($GLOBALS['__composer_autoload_files'][$fileIdentifier])) {
+                $GLOBALS['__composer_autoload_files'][$fileIdentifier] = true;
+
+                require $file;
+            }
+        }, null, null);
+        foreach ($filesToLoad as $fileIdentifier => $file) {
+            $requireFile($fileIdentifier, $file);
         }
 
         return $loader;
     }
 }
-
-/**
- * @param string $fileIdentifier
- * @param string $file
- * @return void
- */
-function composerRequired7f5ddc48e4715174279359c16c76340($fileIdentifier, $file)
-{
-    if (empty($GLOBALS['__composer_autoload_files'][$fileIdentifier])) {
-        $GLOBALS['__composer_autoload_files'][$fileIdentifier] = true;
-
-        require $file;
-    }
-}