It might be that you can't update it.
So that we can help, please tell us:-
Which operating system you are running on
Which version of Photoshop or Photoshop Elements you are using
Which camera the raw images come from (Make & model)
Help / Updates in PS or PSE Editor is usually the way, but if your operating system is too old then maybe the newer version won’t work, so the details Little_Paleface asked are important.