diff --git a/src/Job/Message.php b/src/Job/Message.php
index 26a60ec..5a64200 100644
--- a/src/Job/Message.php
+++ b/src/Job/Message.php
@@ -138,6 +138,7 @@ public function __toString()
     /**
      * @return array
      */
+    #[\ReturnTypeWillChange]
     public function jsonSerialize()
     {
         return $this->parsedBody;