diff --git a/src/Order/Order.php b/src/Order/Order.php
index 0974b3d..25d78bc 100644
--- a/src/Order/Order.php
+++ b/src/Order/Order.php
@@ -47,6 +47,7 @@
  * @property \Carbon\Carbon|null processed_at
  * @property int amount_refunded
  * @property int amount_charged_back
+ * @property array|null metadata
  * @property \Laravel\Cashier\Order\OrderItemCollection items
  * @property \Laravel\Cashier\Refunds\RefundCollection refunds
  *
@@ -72,6 +73,7 @@ class Order extends Model
         'credit_used' => 'int',
         'total_due' => 'int',
         'processed_at' => 'datetime',
+        'metadata' => 'array',
         'created_at' => 'datetime',
         'updated_at' => 'datetime',
     ];
diff --git a/src/Order/OrderItem.php b/src/Order/OrderItem.php
index c5e0e1f..0b1cf0e 100644
--- a/src/Order/OrderItem.php
+++ b/src/Order/OrderItem.php
@@ -25,6 +25,7 @@
  * @property mixed $id
  * @property Order $order
  * @property mixed $order_id
+ * @property array|null metadata
  *
  * @method static create(array $array)
  * @method static make(array $array)
@@ -47,6 +48,7 @@ class OrderItem extends Model implements InvoicableItem
         'tax_percentage' => 'float',
         'orderable_id' => 'int',
         'process_at' => 'datetime',
+        'metadata' => 'array',
     ];
 
     protected $guarded = [];
diff --git a/src/Refunds/Refund.php b/src/Refunds/Refund.php
index 1c0cfd2..07545cb 100644
--- a/src/Refunds/Refund.php
+++ b/src/Refunds/Refund.php
@@ -28,6 +28,7 @@
  * @property \Laravel\Cashier\Refunds\RefundItemCollection items
  * @property Order order
  * @property Order originalOrder
+ * @property array|null metadata
  */
 class Refund extends Model
 {
@@ -37,6 +38,7 @@ class Refund extends Model
 
     protected $casts = [
         'total' => 'int',
+        'metadata' => 'array',
     ];
 
     /**
diff --git a/src/Refunds/RefundItem.php b/src/Refunds/RefundItem.php
index 3e1bfc2..f047bb7 100644
--- a/src/Refunds/RefundItem.php
+++ b/src/Refunds/RefundItem.php
@@ -24,6 +24,7 @@
  * @property string description
  * @property array<string> description_extra_lines
  * @property OrderItem originalOrderItem
+ * @property array|null metadata
  *
  * @method static create(array $array)
  * @method static make(array $array)
@@ -45,6 +46,7 @@ class RefundItem extends Model
         'subtotal' => 'int',
         'tax' => 'int',
         'total' => 'int',
+        'metadata' => 'array',
     ];
 
     /**
diff --git a/src/Subscription.php b/src/Subscription.php
index cb279b7..651ba56 100644
--- a/src/Subscription.php
+++ b/src/Subscription.php
@@ -45,6 +45,7 @@
  * @property float cycle_progress
  * @property float cycle_left
  * @property string $currency
+ * @property array|null metadata
  */
 class Subscription extends Model implements InteractsWithOrderItems, PreprocessesOrderItems, AcceptsCoupons, IsRefundable
 {
@@ -67,6 +68,7 @@ class Subscription extends Model implements InteractsWithOrderItems, Preprocesse
         'cycle_started_at' => 'datetime',
         'cycle_ends_at' => 'datetime',
         'ends_at' => 'datetime',
+        'metadata' => 'array',
     ];
 
     /**