diff --git a/app/Filament/Resources/WinningBidsResource.php b/app/Filament/Resources/WinningBidsResource.php
index cea4677..20f9596 100644
--- a/app/Filament/Resources/WinningBidsResource.php
+++ b/app/Filament/Resources/WinningBidsResource.php
@@ -43,7 +43,15 @@ class WinningBidsResource extends Resource
                     ->options(Bidders::all()->pluck('bidder_assigned_number', 'idbidders'))
                     ->searchable(),
                 TextInput::make('winning_cost')
-                    ->label('Winning Bid'),
+                    ->label('Winning Bid')
+                    ->mask(
+                        fn (TextInput\Mask $mask) => $mask->money(
+                            prefix: '$',
+                            thousandsSeparator: ',',
+                            decimalPlaces: 2,
+                            isSigned: false
+                        )
+                    ),
             ]);
     }