Upgraded to Laravel 5.6.

Author: dmitry-ivanov

composer.json

@@ -10,19 +10,18 @@
         }
     ],
     "require": {
-        "php": ">=7.0",
-        "illuminate/support": "5.5.*",
+        "php": "^7.1.3",
+        "illuminate/support": "5.6.*",
         "nesbot/carbon": "^1.20",
-        "symfony/filesystem": "^3.3",
-        "symfony/finder": "^3.3",
-        "symfony/process": "^3.3",
-        "symfony/var-dumper": "^3.3",
+        "symfony/filesystem": "^4.0",
+        "symfony/finder": "^4.0",
+        "symfony/process": "^4.0",
+        "symfony/var-dumper": "^4.0",
         "spatie/array-to-xml": "^2.2"
     },
     "require-dev": {
-        "phpunit/phpunit": "^6.0",
-        "mockery/mockery": "^1.0",
-        "illuminated/testing-tools": "5.5.*"
+        "phpunit/phpunit": "^7.0",
+        "mockery/mockery": "^1.0"
     },
     "autoload": {
         "files": ["src/autoload.php"],