diff --git a/composer.json b/composer.json
index e872f8a..04374f8 100644
--- a/composer.json
+++ b/composer.json
@@ -43,7 +43,7 @@
     "require-dev": {
         "amphp/phpunit-util": "^3",
         "phpunit/phpunit": "^9",
-        "psalm/phar": "^4.20",
+        "psalm/phar": "^5.4",
         "amphp/php-cs-fixer-config": "^2-dev"
     },
     "suggest": {