update packages

Author: anorgan

composer.json

@@ -18,11 +18,11 @@
     "illuminate/contracts": "~5.2.0|~5.3.0|~5.4.0",
     "illuminate/support": "~5.2.0|~5.3.0|~5.4.0",
     "kargnas/alternative-laravel-cache": "0.1",
-    "spatie/laravel-fractal": "^2.0|^3.0"
+    "spatie/laravel-fractal": "^2.0|^3.0|^4.0"
   },
   "require-dev": {
     "phpunit/phpunit": "^6.0",
     "friendsofphp/php-cs-fixer": "^2.1",
     "roave/security-advisories": "dev-master"
   }
-}
+}