diff --git a/app/Models/InvoiceValidation.php b/app/Models/InvoiceValidation.php
index 9245695..10fa6a6 100644
--- a/app/Models/InvoiceValidation.php
+++ b/app/Models/InvoiceValidation.php
@@ -33,6 +33,8 @@ class InvoiceValidation extends Model
         'operator_id',
         'created_by',
         'updated_by',
+        'created_at',
+        'updated_at',
     ];
 
     public function plant(): BelongsTo