diff --git a/composer.json b/composer.json
index 958c9e4..c8cd84f 100644
--- a/composer.json
+++ b/composer.json
@@ -28,7 +28,7 @@
     "require-dev": {
         "laminas/laminas-coding-standard": "^3.1",
         "phpunit/phpunit": "^12.5.8",
-        "psalm/plugin-phpunit": "^0.19.5",
+        "psalm/plugin-phpunit": "^0.20.0",
         "vimeo/psalm": "^6.13"
     },
     "autoload": {