Install was locked for previous versions

Can install this package in later versions of laravel after this. Remove laravel require and >= for laraven admin.

Author: themightysapien

composer.json

@@ -13,8 +13,7 @@
     ],
     "require": {
         "php": ">=7.0.0",
-        "laravel/framework": "~5.5",
-        "encore/laravel-admin": "~1.5"
+        "encore/laravel-admin": ">=1.5"
     },
     "require-dev": {
         "phpunit/phpunit": "~6.0",