upgraded

composer.json

@@ -10,14 +10,14 @@
         }
     ],
     "require": {
-        "php": ">=5.4.0",
-        "illuminate/support": "^5.3.8"
+        "php": "^7.2",
+        "illuminate/support": "~5.5.0|~5.6.0|~5.7.0|~5.8.0|^6.0"
     },
     "require-dev": {
-        "mockery/mockery": "dev-master",
-        "illuminate/filesystem": "5.x",
-        "laravel/framework": "^5.3.8",
-        "phpunit/phpunit": "^5.7"
+        "mockery/mockery": "^1.0.0",
+        "illuminate/filesystem": "~5.5.0|~5.6.0|~5.7.0|~5.8.0|^6.0",
+        "laravel/framework": "~5.5.0|~5.6.0|~5.7.0|~5.8.0|^6.0",
+        "phpunit/phpunit": "^8.0"
     },
     "autoload": {
         "psr-0": {
@@ -32,12 +32,16 @@
             "Orangehill\\Iseed\\Tests\\": "tests"
         }
     },
-    "minimum-stability": "dev",
     "extra": {
         "laravel": {
             "providers": [
                 "Orangehill\\Iseed\\IseedServiceProvider"
             ]
         }
-    }
+    },
+    "config": {
+        "sort-packages": true
+    },
+    "minimum-stability": "dev",
+    "prefer-stable": true
 }

phpunit.xml

@@ -1,14 +1,14 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <phpunit backupGlobals="false"
          backupStaticAttributes="false"
+         beStrictAboutTestsThatDoNotTestAnything="false"
          bootstrap="vendor/autoload.php"
          colors="true"
          convertErrorsToExceptions="true"
          convertNoticesToExceptions="true"
          convertWarningsToExceptions="true"
          processIsolation="false"
          stopOnFailure="false"
-         syntaxCheck="false"
          verbose="true"
 >
     <testsuites>