diff --git a/composer.json b/composer.json
index 0fb807e..ad5dc04 100644
--- a/composer.json
+++ b/composer.json
@@ -15,7 +15,7 @@
   "require-dev": {
     "laminas/laminas-coding-standard": "^3.1",
     "phpunit/phpunit": "^12.5.22",
-    "psalm/plugin-phpunit": "^0.19.5",
+    "psalm/plugin-phpunit": "^0.20.0",
     "vimeo/psalm": "^6.16"
   },
   "autoload": {