Ubuntu 18.04 certbot upgrade

[Byung-Hee HWANG]

Hellow Ubuntu hackers,

I am running Ubuntu 18.04 LTS in Google Compute Engine. That is Mail
server only inbond. For some reason, i have to upgrade certbot, posibly
i would like to get recent version of certbot. This is current my version:

<quote>
soyeomul at bionic190316003:~$ lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 18.04.6 LTS
Release:	18.04
Codename:	bionic
soyeomul at bionic190316003:~$ dpkg -l | grep certbot
ii  certbot                            0.27.0-1~ubuntu18.04.2                    all          automatically configure HTTPS using Let's Encrypt
ii  python3-certbot                    0.27.0-1~ubuntu18.04.2                    all          main library for certbot
soyeomul at bionic190316003:~$ 
</quote>

I did try `sudo apt update' then `sudo apt upgrade' But there is no
difference. Still certbot is 0.27. How can i upgrade certbot?

And the Ubuntu version must be 18.04 LTS.

Help me! Any comments welcome!!


Sincerely, Byung-Hee