Rails SVN question

For a rails project, when I want to update the vendor/rails it appears that the easiest way to update this in svn is to delete the directory, refresh the gems and then re-add the directory to the svn.  Does this sound right?  Seems like it should be easier.  This has been the process that we have used for about a year and after going through it again (to update to the 2.0.2 framework), I’m just thinking that its got to be easier.

–TR