laravel compatibility

Author: wamilomarov

composer.json

@@ -13,12 +13,12 @@
     ],
     "require": {
         "php": ">=7.0.0",
-        "laravel/framework": "~5.5",
-        "encore/laravel-admin": "~1.5"
+        "laravel/framework": ">=5.5",
+        "encore/laravel-admin": ">=1.5"
     },
     "require-dev": {
-        "phpunit/phpunit": "~6.0",
-        "laravel/laravel": "~5.5"
+        "phpunit/phpunit": ">=6.0",
+        "laravel/laravel": ">=5.5"
     },
     "autoload": {
         "psr-4": {