Can’t update plugin

Hi,

I purchased Form Maker Pro & am looking to add a signature entry, which I found to have been released in version 1.13.58/2.13.58 according to Asya Gabrilyan (https://help.10web.io/hc/en-us/community/posts/360009908699-Signature-field-in-Form-Maker-Pro-Plugin).

I can’t find a way to update my plugin, I am on version 2.13.43. Can someone please help? Thanks!