diff --git a/composer.json b/composer.json
index 5868ca2..0917d4b 100755
--- a/composer.json
+++ b/composer.json
@@ -16,7 +16,7 @@
         "phan/phan": ">=3.2.6",
         "phploc/phploc": ">=7.0",
         "phpmetrics/phpmetrics": ">=2.8",
-        "rector/rector": ">=0.16.0"
+        "rector/rector": ">=0.18.0"
     },
     "minimum-stability": "dev",
     "prefer-stable": true