diff --git a/routes/web.php b/routes/web.php
index ff8a0ca0..21677392 100644
--- a/routes/web.php
+++ b/routes/web.php
@@ -20,7 +20,7 @@ Route::get('/old-invoices', function(){
         $q->whereNotNull('image_path');
     })->get();
     dd($bookings->groupBy(function($item) {
-        return $item->created_at->format('m');
+        return $item->created_at->format('Y-m');
     }));
     echo "<h1>Total pending invoices:<b>".count($bookings)."</b></h1>";
     foreach ($bookings as $booking) {