diff --git a/StripeService.ts b/StripeService.ts
index 1ebc5b8..728197d 100644
--- a/StripeService.ts
+++ b/StripeService.ts
@@ -18,7 +18,7 @@ export class StripeService {
     ssl: true,
   });
 
-  async createCheckoutSession(): Promise<string> {
+  async createCheckoutSession(userId: string): Promise<string> {
     const stripePromise = await stripe.checkout.sessions.create({
       line_items: [
         {
@@ -37,6 +37,11 @@ export class StripeService {
       cancel_url: `${process.env.FRONTEND_URL}?canceled=true`,
     });
 
+    await this.pool.query(
+      "update credits set credits = credits + 10 where userId = $1",
+      [userId]
+    );
+
     return stripePromise.url || "";
   }