diff --git a/libraries/xhtml b/libraries/xhtml
index c5c623e497f13ec187e0d228e0e8a3d9ee39a715..721779acc35dccd6a43a292b24099b65d93d390c 160000
--- a/libraries/xhtml
+++ b/libraries/xhtml
@@ -1 +1 @@
-Subproject commit c5c623e497f13ec187e0d228e0e8a3d9ee39a715
+Subproject commit 721779acc35dccd6a43a292b24099b65d93d390c