I need to upgrade hplip from 3.20.3 to 3.20.5, i need instructions please

[kissbaby3]

Todays date:11-22-21

i'm using Linux lite 5.6,

well something must of updated on the hp website,
any ways i need to upgrade hplip 3.20.3 (came with linux lite 5.6), to hplip 3.20.5

i have the file "hplip-3.20.5-plugin.run" file.

its in my dowloads folder.

i played with the terminal before when doing stuff. so not to shy about that.

i'm hoping for step by steps instructions to do this correctly. surely some one has done this before using Linux lite 5 series.
please help :wave