diff --git a/src/Contracts/QueueWorker.php b/src/Contracts/QueueWorker.php
index e3f4c39..3bdcb89 100644
--- a/src/Contracts/QueueWorker.php
+++ b/src/Contracts/QueueWorker.php
@@ -6,7 +6,7 @@
 
 interface QueueWorker
 {
-    public function up(QueueConfig $config): void;
+    public function up(string|QueueConfig $config): void;
 
     public function down(string $alias): void;
 }