(Guix GNU+Linux) Need help with packages with older versions than wanted on the Guix Channel.

Hello. I am new to the Guix GNU+Linux distro. And I’m trying to get the latest version of Anki (2.1.65). However, an older version (2.1.16) is what’s there in the Guix channel (which is too old). I’m reading here that a simple edit to the education.scm file (the version var) would fix it. Unfortunately, the education.scm...