Competitor keeps editing 1 star review to stay newest

Hi all,

I have a miserable competitor that left us a one star review. I reported the review to Google and they didn't find any policy violations, unfortunately.

We replied to the review politely, stating the facts and moved on.

We found that since then, the person keeps editing the review (changes a couple of words) to keep this false one star review "newest".

We tried reaching out to this person and he basically told us to kick rocks.

How do you deal with something like this?