diff --git a/server.ts b/server.ts
index 365aebe..3f5cbd6 100644
--- a/server.ts
+++ b/server.ts
@@ -1757,7 +1757,7 @@ app.post('/api/webhooks/asaas', async (req: Request, res: Response) => {
 
     if (existingPayment) {
       if (newStatus) {
-        await prisma.payment.update({
+        existingPayment = await prisma.payment.update({
           where: { id: payment.id },
           data: {
             status: newStatus as any,
@@ -1771,7 +1771,7 @@ app.post('/api/webhooks/asaas', async (req: Request, res: Response) => {
         orderBy: { createdAt: 'desc' }
       });
       
-      await prisma.payment.create({
+      existingPayment = await prisma.payment.create({
         data: {
           id: payment.id,
           userId: user.id,
@@ -1788,20 +1788,20 @@ app.post('/api/webhooks/asaas', async (req: Request, res: Response) => {
     }
 
     const description = payment.description || '';
-    const isCoursePayment = description.startsWith('unlock_course_');
+    const isCoursePayment = existingPayment?.courseId ? true : description.startsWith('unlock_course_');
+    const courseIdToUnlock = existingPayment?.courseId || description.replace('unlock_course_', '');
 
     if (isPaid) {
-      if (isCoursePayment) {
-        const courseId = description.replace('unlock_course_', '');
+      if (isCoursePayment && courseIdToUnlock) {
         let newUnlocked = user.unlockedCourses || [];
-        if (!newUnlocked.includes(courseId)) {
-          newUnlocked.push(courseId);
+        if (!newUnlocked.includes(courseIdToUnlock)) {
+          newUnlocked.push(courseIdToUnlock);
         }
         await prisma.user.update({
           where: { id: user.id },
           data: { unlockedCourses: newUnlocked }
         });
-        console.log(`Webhook: Curso ${courseId} LIBERADO para usuário ${user.email}`);
+        console.log(`Webhook: Curso ${courseIdToUnlock} LIBERADO para usuário ${user.email}`);
       } else {
         await prisma.user.update({
           where: { id: user.id },