diff --git a/composer.json b/composer.json
index f5d9ec1..3bb2b07 100644
--- a/composer.json
+++ b/composer.json
@@ -20,7 +20,9 @@
         "psr/log": "^3.0@dev"
     },
     "require-dev": {
-		"phpstan/phpstan": "^1.12",
+		"phpstan/phpstan": "^2.0",
+		"phpstan/phpdoc-parser": "^2.0",
+		"phpstan/phpstan-deprecation-rules": "^2.0",
         "phan/phan": "^5.4",
         "egrajp/smarty-extended": "^4.3",
         "gullevek/dotenv": "dev-master",