Update minimum PHP version

Author: mikebronner

README.md

@@ -17,7 +17,7 @@ This package allows you to use [**Geocoder**](http://geocoder-php.org/Geocoder/)
  in [**Laravel 5**](http://laravel.com/).
 
 ## Requirements
-- PHP >= 7.0.0
+- PHP >= 7.0.25
 - Laravel >= 5.0
 
 ## Installation

composer.json

@@ -30,7 +30,7 @@
         "illuminate/cache": "5.0 - 5.6",
         "illuminate/support": "5.0 - 5.6",
         "php-http/curl-client": "^1.7",
-        "php": "^7.0",
+        "php": ">=7.0.25",
         "willdurand/geocoder": "^4.0"
     },
     "require-dev": {