diff --git a/composer.json b/composer.json
index e1fda4f..49ec5e9 100644
--- a/composer.json
+++ b/composer.json
@@ -17,7 +17,8 @@
         "phpstan/phpstan": "^0.12.32",
         "phpunit/phpunit": "^9.5",
         "infection/infection": "^0.23.0",
-        "squizlabs/php_codesniffer": "^3.6"
+        "squizlabs/php_codesniffer": "^3.6",
+        "jetbrains/phpstorm-attributes": "^1.0"
     },
     "autoload": {
         "psr-4": {