diff --git a/cppguide.html b/cppguide.html
index 7c87799..7a50b41 100644
--- a/cppguide.html
+++ b/cppguide.html
@@ -644,7 +644,7 @@ using ::foo::Bar;
   <code>.proto</code> file. See
 
 
-  <a href="https://developers.google.com/protocol-buffers/docs/reference/cpp-generated#package">
+  <a href="https://protobuf.dev/reference/cpp/cpp-generated/#package">
   Protocol Buffer Packages</a>
   for details.</li>
 
@@ -6020,4 +6020,4 @@ occasionally need to break on Windows:</p>
 </ul>
 </div>
 </body>
-</html>
\ No newline at end of file
+</html>