diff --git a/database/migrations/2026_07_27_000001_widen_withdraws_tracked_number.php b/database/migrations/2026_07_27_000001_widen_withdraws_tracked_number.php
new file mode 100644
index 0000000..ac51b1b
--- /dev/null
+++ b/database/migrations/2026_07_27_000001_widen_withdraws_tracked_number.php
@@ -0,0 +1,29 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Schema;
+
+/**
+ * session_id مونتیفای ~۶۴ کاراکتر است؛ tracked_number قبلاً کوتاه بود (مثلاً varchar(50)).
+ */
+return new class extends Migration
+{
+    public function up(): void
+    {
+        if (! Schema::hasTable('withdraws') || ! Schema::hasColumn('withdraws', 'tracked_number')) {
+            return;
+        }
+
+        DB::statement('ALTER TABLE `withdraws` MODIFY `tracked_number` VARCHAR(191) NULL');
+    }
+
+    public function down(): void
+    {
+        if (! Schema::hasTable('withdraws') || ! Schema::hasColumn('withdraws', 'tracked_number')) {
+            return;
+        }
+
+        DB::statement('ALTER TABLE `withdraws` MODIFY `tracked_number` VARCHAR(50) NULL');
+    }
+};