diff --git a/expat/doc/xmlwf.xml b/expat/doc/xmlwf.xml
index 47dfb39e..39fdfdf8 100644
--- a/expat/doc/xmlwf.xml
+++ b/expat/doc/xmlwf.xml
@@ -454,8 +454,8 @@ supports both.
 	<para>
 
 <literallayout>
-The Expat home page:        http://www.libexpat.org/
-The W3 XML specification:   http://www.w3.org/TR/REC-xml
+The Expat home page:                            https://libexpat.github.io/
+The W3 XML 1.0 specification (fourth edition):  https://www.w3.org/TR/2006/REC-xml-20060816/
 </literallayout>
 
 	</para>