diff --git a/composer.json b/composer.json
index 6fc1e5d..1786c28 100755
--- a/composer.json
+++ b/composer.json
@@ -13,7 +13,8 @@
         "squizlabs/php_codesniffer": ">=3.6",
         "phpmd/phpmd": ">=2.9",
         "phpstan/phpstan": ">=1.8.6",
-        "phan/phan": ">=3.2.6"
+        "phan/phan": ">=3.2.6",
+        "rector/rector": "^0.16.0"
     },
     "minimum-stability": "dev",
     "prefer-stable": true