diff --git a/be/app/Models/Timesheet.php b/be/app/Models/Timesheet.php
index 8df3c00..c32ad34 100644
--- a/be/app/Models/Timesheet.php
+++ b/be/app/Models/Timesheet.php
@@ -11,6 +11,7 @@ class Timesheet extends Model
 
     public $timestamps = true;
     public $guarded = ['id'];
+    public $fillable = ['sub_task_id', 'user_id', 'time', 'synced_to_karat', 'created_at', 'updated_at'];
 
     protected $touches = ['subtask'];