Daily job for sa-update

Hi,

after runnning a mailserver for a while I've noticed that the spamassassin channels were not updated daily/regularly.

Is there a job which can be activated so that this job is done on a daily trigger or do I have to write a cronjob for hat?

sudo sa-update --no-gpg -v --refreshmirrors

Update available for channel updates.spamassassin.org: 1675065 -> 1675274

http: (curl) GET http://spamassassin.apache.org/updates/MIRRORED.BY, success

http: (curl) GET http://sa-update.dnswl.org/1675274.tar.gz, success

http: (curl) GET http://sa-update.dnswl.org/1675274.tar.gz.sha1, success

Update was available, and was downloaded and installed successfully

I'd like that to be done automatically.

Greets

Sascha