I hadn’t noticed but my log directory was slowly growing. This is running on a digitalocean droplet.
Taken from: https://www.digitalocean.com/community/tutorials/how-to-use-journalctl-to-view-and-manipulate-systemd-logs
Deleting Old Logs
If you use the –vacuum-size option, you can shrink your journal by indicating a size. This will remove old entries until the total journal space taken up on disk is at the requested size:
sudo journalctl --vacuum-size=1G
Back to a healthier size.