updated dependencies

composer.json

@@ -10,10 +10,10 @@
         }
     ],
     "require": {
-        "php": ">=7"
+        "php": ">=5.4.0"
     },
     "require-dev": {
-        "laravel/framework": ">=5.5"
+        "laravel/framework": ">=5.0"
     },
     "minimum-stability": "dev",
     "autoload": {