diff --git a/app/Models/System/Schedule.php b/app/Models/System/Schedule.php
index 1d49b0d0..a2ae3ec6 100644
--- a/app/Models/System/Schedule.php
+++ b/app/Models/System/Schedule.php
@@ -32,8 +32,8 @@ class Schedule extends Model
     ];
 
     protected $casts = [
-        'start_date' => 'date',
-        'end_date' => 'date',
+        'start_date' => 'date:Y-m-d',
+        'end_date' => 'date:Y-m-d',
         'is_all_day' => 'boolean',
         'is_recurring' => 'boolean',
         'is_active' => 'boolean',