This has been bugging me for a while, but today it's annoying me to the point I want to fix it.  Wget gives me an error whenever I try to use it.  I have no problem getting files using a web browser.  Here's an example.  Using firefox I was able to download the file, but this can be a pain in the butt when I'm trying to add a repository.  I have Ubuntu 20.04 installed.

$ wget https://www.gutenberg.org/ebooks/68992.epub.images
--2022-09-16 14:08:02--  https://www.gutenberg.org/ebooks/68992.epub.images
Resolving www.gutenberg.org (www.gutenberg.org)... 152.19.134.47, 2610:28:3090:3000:0:bad:cafe:47
Connecting to www.gutenberg.org (www.gutenberg.org)|152.19.134.47|:443... connected.
ERROR: cannot verify www.gutenberg.org's certificate, issued by ‘CN=Network Solutions OV Server CA 2
,O=Network Solutions L.L.C.,L=Herndon,ST=VA,C=US’:
 Self-signed certificate encountered.
To connect to www.gutenberg.org insecurely, use `--no-check-certificate'.

Any idea how to fix this?  thanks