:octocat: PHPUnit 8.3

composer.json

@@ -30,7 +30,7 @@
 		"chillerlan/php-settings-container": "^1.1"
 	},
 	"require-dev": {
-		"phpunit/phpunit": "^8.0"
+		"phpunit/phpunit": "^8.3"
 	},
 	"suggest": {
 		"chillerlan/php-authenticator": "^3.0"