diff --git a/composer.json b/composer.json
index 588db1b..07b24b1 100644
--- a/composer.json
+++ b/composer.json
@@ -9,7 +9,7 @@
         "phpat/phpat": "^0.7.5",
         "facile-it/facile-coding-standard": "^0.5.1",
         "icomefromthenet/reverse-regex": "^0.1.0",
-        "vimeo/psalm": "4.8.1",
+        "vimeo/psalm": "4.15.0",
         "friendsofphp/php-cs-fixer": "^3.3"
     },
     "license": "MIT",