diff --git a/composer.json b/composer.json
index d6569fa..a6c1165 100644
--- a/composer.json
+++ b/composer.json
@@ -9,7 +9,7 @@
         "phpunit/phpunit": "^9.6.7",
         "infection/infection": "^0.26.19",
         "doctrine/coding-standard": "^12.0.0",
-        "vimeo/psalm": "^5.9.0"
+        "vimeo/psalm": "^6.3.0"
     },
     "autoload": {
         "psr-4": {