Set PHPUnit version to the max current compatible

kylekatarnls · web-flow · commit 26928276e154 · 2017-02-05T14:31:38.000+01:00
diff --git a/composer.json b/composer.json
@@ -13,7 +13,7 @@
     "php": ">=5.3.0"
   },
   "require-dev": {
-    "phpunit/phpunit": ">=4.8",
+    "phpunit/phpunit": ">=4.8 <6.0",
     "codeclimate/php-test-reporter": "dev-master"
   },
   "minimum-stability": "stable",
