reload render partial in production mode

Hi Rails Guru,

I have a partial view _rss.rhml that is updated with a cronjob every
15 minutes by parsing a remote rss feeds. On my main web site I read
the _rss.rhtml file on the side bar. But because production mode
caches rhtml files, my sidebar for the _rss.rhtml doesn't get updated
accordingly. How do I force the sidebar on the page to reload? Or any
other solution? Thanks!