diff --git a/app/Models/CorporateVehicle.php b/app/Models/CorporateVehicle.php
index 59fcda38..66a2dad1 100644
--- a/app/Models/CorporateVehicle.php
+++ b/app/Models/CorporateVehicle.php
@@ -47,7 +47,5 @@ class CorporateVehicle extends Model
         'deposit' => 'integer',
         'monthly_rent' => 'integer',
         'monthly_rent_tax' => 'integer',
-        'purchase_date' => 'date',
-        'contract_date' => 'date',
     ];
 }