diff --git a/prisma/migrations/20260304000000_add_paid_at_index/migration.sql b/prisma/migrations/20260304000000_add_paid_at_index/migration.sql
new file mode 100644
index 0000000..6bef80c
--- /dev/null
+++ b/prisma/migrations/20260304000000_add_paid_at_index/migration.sql
@@ -0,0 +1,2 @@
+-- CreateIndex
+CREATE INDEX "orders_paid_at_idx" ON "orders"("paid_at");
diff --git a/prisma/schema.prisma b/prisma/schema.prisma
index d5d2351..d248bff 100644
--- a/prisma/schema.prisma
+++ b/prisma/schema.prisma
@@ -46,6 +46,7 @@ model Order {
   @@index([status])
   @@index([expiresAt])
   @@index([createdAt])
+  @@index([paidAt])
   @@map("orders")
 }