upgrade dependencies

.scrutinizer.yml

@@ -1,6 +1,6 @@
 build:
   environment:
-    php: '5.5.25'
+    php: '7'
   dependencies:
     before:
       - composer install

.travis.yml

@@ -1,10 +1,9 @@
 language: php
 
 php:
- - 5.5
- - 5.6
  - 7
  - 7.1
+ - 7.2
 
 before_install:
   - sudo apt-get -qq update

composer.json

@@ -10,16 +10,16 @@
         }
     ],
     "require": {
-        "php": ">=5.5.9",
+        "php": ">=7.0",
         "ext-dom": "*",
-        "illuminate/support": "5.1.*|5.2.*|5.3.*|5.4.*",
+        "illuminate/support": "5.5.*|5.6.*",
         "doctrine/dbal": "^2.5",
         "guzzlehttp/guzzle": "^6.2"
     },
     "require-dev": {
-        "mockery/mockery": "0.9.*",
-        "phpunit/phpunit": "~4.0",
-        "orchestra/testbench": "3.1.*|3.2.*|3.3.*|3.4.*"
+        "mockery/mockery": "^1.0",
+        "phpunit/phpunit": "^6.0|^7.0",
+        "orchestra/testbench": "3.5.*|3.6.*"
     },
     "autoload": {
         "psr-4": {

readme.md

@@ -1,8 +1,8 @@
 # CAS Server for Laravel
 
-laravel_cas_server is a Laravel package that implements the server part of [CAS protocol](https://apereo.github.io/cas/4.2.x/protocol/CAS-Protocol-Specification.html) v1/v2/v3 without the proxy ticket part.
+laravel_cas_server is a Laravel package that implements the server part of [CAS protocol](https://apereo.github.io/cas/4.2.x/protocol/CAS-Protocol-Specification.html) v1/v2/v3.
 
-Currently this package works for Laravel 5.1/5.2/5.3/5.4 .
+This package works for Laravel 5.5/5.6 . Please check 2.x branch if you are using Laravel 5.1 - 5.4 .
 
 [![Latest Version](http://img.shields.io/github/release/leo108/laravel_cas_server.svg)](https://github.com/leo108/laravel_cas_server/releases)
 [![Software License](https://img.shields.io/badge/license-MIT-brightgreen.svg)](LICENSE)
@@ -12,7 +12,7 @@ Currently this package works for Laravel 5.1/5.2/5.3/5.4 .
 
 ## Requirements
 
-- PHP >=5.5.9
+- PHP >=7.0
 
 ## Installation && Usage