Removing S's from speeches

I have run a recording that was done with a distant mic through a noise print and removed a lot of the background noise, but I notice that I am left with a lot of eSS sounds in the voice at the end of words. I have tried a lot of filters, but can’t figure out how to remove that frequency from the recording. Would appreciate some guidance. I have a sample here

There is an optional De-esser plug-in. (I have not tried it.)