diff --git a/composer.json b/composer.json
index c556b85..2785a2e 100644
--- a/composer.json
+++ b/composer.json
@@ -13,7 +13,7 @@
         "blitz-php/filesystem": "^1.2",
         "guzzlehttp/psr7": "^2.6",
         "kahlan/kahlan": "^5.2",
-        "phpstan/phpstan": "^1.4.7"
+        "phpstan/phpstan": "^1.4.7 || ^2.0.0"
     },
     "license": "MIT",
     "autoload": {
diff --git a/src/Rules/Iban.php b/src/Rules/Iban.php
index 42438bc..a81a986 100644
--- a/src/Rules/Iban.php
+++ b/src/Rules/Iban.php
@@ -22,7 +22,7 @@ class Iban extends AbstractRule
     /**
      * Character map
      *
-     * @var array|int[]
+     * @var array|list<int>
      */
     private array $characterMap = [
         'A' => 10,