diff --git a/composer.json b/composer.json
index 23496f1..d73aea3 100644
--- a/composer.json
+++ b/composer.json
@@ -52,7 +52,7 @@
         "phpunit/phpunit": "^10.5.35",
         "psalm/plugin-mockery": "^0.11.0",
         "psalm/plugin-phpunit": "^0.18.4",
-        "vimeo/psalm": "^5.17.0"
+        "vimeo/psalm": "^6.0.0"
     },
     "conflict": {
         "amphp/amp": "<2.6.4",