Update composer.json

Author: driesvints

composer.json

@@ -5,13 +5,13 @@
     "license": "MIT",
     "type": "project",
     "require": {
-        "php": "^7.2.5",
-        "laravel/lumen-framework": "^7.0"
+        "php": "^7.3",
+        "laravel/lumen-framework": "^8.0"
     },
     "require-dev": {
         "fzaninotto/faker": "^1.9.1",
         "mockery/mockery": "^1.3.1",
-        "phpunit/phpunit": "^8.5"
+        "phpunit/phpunit": "^9.3"
     },
     "autoload": {
         "classmap": [