diff --git a/composer.json b/composer.json
index d74b6af..f6018ef 100644
--- a/composer.json
+++ b/composer.json
@@ -15,7 +15,7 @@
         "php": "^8.4"
     },
     "require-dev": {
-        "phpstan/phpstan": "2.1.54",
+        "phpstan/phpstan": "2.1.55",
         "phpunit/phpunit": "12.5.8",
         "friendsofphp/php-cs-fixer": "3.95.2"
     },