diff --git a/tools/composer.json b/tools/composer.json
index 0f0c2ccec..b8fe53df9 100644
--- a/tools/composer.json
+++ b/tools/composer.json
@@ -3,7 +3,7 @@
         "doctrine/coding-standard": "^12.0.0",
         "phpstan/phpstan": "^2.1.2",
         "phpstan/phpstan-phpunit": "^2.0.4",
-        "vimeo/psalm": "^5.26.1",
+        "vimeo/psalm": "^6.0.0",
         "roave/backward-compatibility-check": "^8.10.0",
         "roave/infection-static-analysis-plugin": "^1.35.0"
     },