Change bitrate in songs?

Hello,

I am using rekordbox 6. I had some songs in my collection that were low bitrate (128 kbps). I downloaded the 320 kbps version of the same songs, deleted the old ones and relocated them in rekordbox. The thing is, rekordbox still shows the tracks as 128kbps, even though they are not. That's probably because rb still has the metadata from the previous files. How can I change that? I tried reloading tag, but didn't work.