diff --git a/supabase/functions/stripe-checkout/index.ts b/supabase/functions/stripe-checkout/index.ts
index f44306d..8cbcb9f 100644
--- a/supabase/functions/stripe-checkout/index.ts
+++ b/supabase/functions/stripe-checkout/index.ts
@@ -107,6 +107,7 @@ Deno.serve(async (req) => {
 
         const session = await stripe.checkout.sessions.create({
             mode: "subscription",
+            allow_promotion_codes: true, // Libera o campo de cupom de desconto na tela do Stripe
             line_items: [{ price: priceId, quantity: 1 }],
             success_url: successUrl,
             cancel_url: cancelUrl,