Letsencrypt app uses outdated CA

Hi all,

i installed letsencrypt from app center to give it a try. It ran successfully and created certificates for apache.
Wenn navigating to that domain using an up to date firefox i tan into a certificate issue:


Somehow ucs letsencrypt app used an outdated ca to create a certificate:

Let’s Encrypt
Let’s Encrypt Authority X3

Digital Signature Trust Co.
DST Root CA X3
valid to Wed, 17 Mar 2021 16:40:46 GMT

It is an updated version of ucs5. shouldn’t that app work out of the box?

Hello. This issue would need to be dealt with manually. Please search for similar topics as it has been addressed a few times on this forum.

See here: