diff --git a/Doc/library/concurrent.futures.rst b/Doc/library/concurrent.futures.rst
index 8106cc235e5a3c..c2c64d9c6ee769 100644
--- a/Doc/library/concurrent.futures.rst
+++ b/Doc/library/concurrent.futures.rst
@@ -202,7 +202,7 @@ ThreadPoolExecutor Example
            'http://www.cnn.com/',
            'http://europe.wsj.com/',
            'http://www.bbc.co.uk/',
-           'http://some-made-up-domain.com/']
+           'http://nonexistant-subdomain.python.org/']
 
    # Retrieve a single page and report the URL and contents
    def load_url(url, timeout):