diff --git a/DeprecationErrorHandler.php b/DeprecationErrorHandler.php
index d18e161d..3b71124e 100644
--- a/DeprecationErrorHandler.php
+++ b/DeprecationErrorHandler.php
@@ -98,15 +98,15 @@ public static function register($mode = 0)
             'legacyCount' => 0,
             'otherCount' => 0,
             'remaining vendorCount' => 0,
-            'unsilenced' => [],
-            'remaining' => [],
-            'legacy' => [],
-            'other' => [],
-            'remaining vendor' => [],
+            'unsilenced' => array(),
+            'remaining' => array(),
+            'legacy' => array(),
+            'other' => array(),
+            'remaining vendor' => array(),
         ];
-        $deprecationHandler = function ($type, $msg, $file, $line, $context = []) use (&$deprecations, $getMode, $UtilPrefix, $inVendors) {
+        $deprecationHandler = function ($type, $msg, $file, $line, $context = array()) use (&$deprecations, $getMode, $UtilPrefix, $inVendors) {
             $mode = $getMode();
-            if ((E_USER_DEPRECATED !== $type && E_DEPRECATED !== $type) || self::MODE_DISABLED === $mode) {
+            if ((E_USER_DEPRECATED !== $type && E_DEPRECATED !== $type) || DeprecationErrorHandler::MODE_DISABLED === $mode) {
                 $ErrorHandler = $UtilPrefix.'ErrorHandler';
 
                 return $ErrorHandler::handleError($type, $msg, $file, $line, $context);
diff --git a/composer.json b/composer.json
index 4d72603e..c629e871 100644
--- a/composer.json
+++ b/composer.json
@@ -21,8 +21,7 @@
         "php": ">=5.3.3"
     },
     "suggest": {
-        "symfony/debug": "For tracking deprecated interfaces usages at runtime with DebugClassLoader",
-        "ext-zip": "Zip support is required when using bin/simple-phpunit"
+        "symfony/debug": "For tracking deprecated interfaces usages at runtime with DebugClassLoader"
     },
     "conflict": {
         "phpunit/phpunit": "<4.8.35|<5.4.3,>=5.0"