Change order of plugins on "post" page?

Hello, on a post page I have the Jetpack share buttons enabled and the Flexo Facebook Manager comments. The Flexo plugin is displayed first before the Jetpack plugin share buttons. I’d like to reverse these two. I’m not all that familiar with WordPress so am wondering what file I’d need to edit to do this. Or, is there a better way to do this so, after an update, I don’t have to modify the file again?

Thanks!