diff --git a/web.rb b/web.rb
index fce305f..a638733 100644
--- a/web.rb
+++ b/web.rb
@@ -110,11 +110,23 @@ def authenticate!
     else
       begin
         @customer = create_customer()
+
         # Attach some test cards to the customer for testing convenience.
-        # See https://stripe.com/docs/testing#cards
-        ['pm_card_threeDSecure2Required', 'pm_card_visa'].each { |pm_id|
+        # See https://stripe.com/docs/payments/3d-secure#three-ds-cards 
+        # and https://stripe.com/docs/mobile/android/authentication#testing
+        ['4000000000003220', '4000000000003238', '4000000000003246', '4000000000003253', '4242424242424242'].each { |cc_number|
+          payment_method = Stripe::PaymentMethod.create({
+            type: 'card',
+            card: {
+              number: cc_number,
+              exp_month: 8,
+              exp_year: 2022,
+              cvc: '123',
+            },
+          })
+
           Stripe::PaymentMethod.attach(
-            pm_id,
+            payment_method.id,
             {
               customer: @customer.id,
             }