How to get updated psycopg2 library with pgAdmin

We are facing a lot of issues with the 64 bit OID bug in psycopg2, as described here: https://github.com/psycopg/psycopg2/issues/961

I understand this fix has been released, but we cannot seem to figure out how to get the latest version of psycopg2 packaged with pgAdmin.  Even installing the latest version, we still face the bug.

Is there any general guidance on how to get the latest version of psycopg2 to work with pgAdmin on both Mac and Windows?

Thank you!!