diff --git a/src/Core/Json/Hash.php b/src/Core/Json/Hash.php
index 97799e7..404c881 100644
--- a/src/Core/Json/Hash.php
+++ b/src/Core/Json/Hash.php
@@ -47,6 +47,10 @@ public static function cast($value): self
             $value = $value->jsonSerialize();
         }
 
+        if ($value instanceof \stdClass) {
+            $value = (array) $value;
+        }
+
         if (is_array($value) || is_null($value)) {
             return new self($value);
         }