diff --git a/composer.json b/composer.json
index fbfc194b..97af9ebf 100644
--- a/composer.json
+++ b/composer.json
@@ -48,7 +48,7 @@
     "phpstan/phpstan": "^1",
     "phpstan/phpstan-strict-rules": "^1",
     "psr-mock/http": "^1",
-    "rector/rector": "^0",
+    "rector/rector": "0.17.0",
     "spatie/ray": "^1",
     "symfony/cache": "^4 || ^5 || ^6",
     "symfony/event-dispatcher": "^4 || ^5 || ^6",