diff --git a/composer.json b/composer.json
index 8c5243f..95679b8 100644
--- a/composer.json
+++ b/composer.json
@@ -18,7 +18,7 @@
         "laminas/laminas-cache": "^4.2",
         "laminas/laminas-cache-storage-adapter-test": "^4.2",
         "laminas/laminas-coding-standard": "~3.1.0",
-        "psalm/plugin-phpunit": "^0.19.0",
+        "psalm/plugin-phpunit": "^0.20.0",
         "vimeo/psalm": "^6.15.1"
     },
     "config": {