diff --git a/doc/src/sgml/external-projects.sgml b/doc/src/sgml/external-projects.sgml
index 7d26477123..a9e8329125 100644
--- a/doc/src/sgml/external-projects.sgml
+++ b/doc/src/sgml/external-projects.sgml
@@ -178,7 +178,7 @@
PL/PHP
PHP
- http://www.commandprompt.com/community/plphp/
+ https://public.commandprompt.com/projects/plphp