diff --git a/spec/integration/zipcode_example_spec.rb b/spec/integration/zipcode_example_spec.rb
index cedeca04..b434fa45 100644
--- a/spec/integration/zipcode_example_spec.rb
+++ b/spec/integration/zipcode_example_spec.rb
@@ -2,26 +2,26 @@
 require "spec_helper"
 
 RSpec.describe "ZIP code example" do
-  it "supports threads making requests simultaneously" do
-    client = Savon.client(
-      :wsdl => "http://www.thomas-bayer.com/axis2/services/BLZService?wsdl",
+  let(:expected) { ["seventy million seventy thousand ten ", "twenty four million fifty thousand one hundred and ten ", "twenty million fifty thousand five hundred and fifty "] }
+  let(:request_data) { [70070010, 24050110, 20050550] }
 
+  let(:client) {
+    Savon.client(
+      wsdl: "https://www.dataaccess.com/webservicesserver/NumberConversion.wso?wsdl",
+      ssl_verify_mode: OpenSSL::SSL::VERIFY_NONE,
       # Lower timeouts so these specs don't take forever when the service is not available.
-      :open_timeout => 10,
-      :read_timeout => 10,
-
-      :log => false # Disable logging for cleaner spec output.
+      open_timeout: 10,
+      read_timeout: 10,
+      log: false # Disable logging for cleaner spec output.
     )
-
-    mutex = Mutex.new
-
-    request_data = [70070010, 24050110, 20050550]
+  }
+  let(:mutex) { Mutex.new }
+  it "supports threads making requests simultaneously" do
     threads_waiting = request_data.size
-
     threads = request_data.map do |blz|
       thread = Thread.new do
-        response = call_and_fail_gracefully(client, :get_bank, :message => { :blz => blz })
-        Thread.current[:value] = response.body[:get_bank_response][:details]
+        response = call_and_fail_gracefully(client, :number_to_words, :message => { :ubi_num => blz })
+        Thread.current[:value] = response.body[:number_to_words_response][:number_to_words_result]
         mutex.synchronize { threads_waiting -= 1 }
       end
 
@@ -34,6 +34,6 @@
     threads.each(&:kill)
     values = threads.map { |thr| thr[:value] }.compact
 
-    expect(values.uniq.size).to eq(values.size)
+    expect(values).to match_array(expected)
   end
 end