bugfix

Author: mevdschee

composer.json

@@ -29,7 +29,7 @@
     "php": ">=5.3.0"
   },
   "require-dev": {
-    "phpunit/phpunit": "^5.7.0"
+    "phpunit/phpunit": "^4.8.0"
   },
   "autoload": {
     "files": ["api.php"]