RSS Feeds.

Running the latest version of Gallery2. I'm using the RSS codex and gallery_rss.php script to display an image feed in WordPress. I've noticed after a little while that the feed is gone (not really gone, but the feed has changed) and it doesnt show my most recent images any longer. I checked the feed out itself and the images are dropped there. Is there a way to set the rss feed to where it will not expire? That way the images always show and just change as I update Gallery?