Sedra RSS feed does not reflect readings for special Shabbatot

Hi - our synagogue website uses the RSS feed (http://www.hebcal.com/sedrot/index.xml)  to display the upcoming week's Torah readings. I've noticed that it does not include modified readings for special Shabbatot, e.g. the haftarah for Shabbat Hagadol is from Malachi, but the RSS feed is showing the standard Metzora haftarah from II Kings. It would be great to have this accurately reflect the reading, especially since you already display it correctly in other contexts. Thank you!