Updating Paper on VPS

So I’ve been using a shared host for a while and recently moved to OVH.

Now, this might be a really stupid question but how do I update my Paper-192.jar to the latest version?
I tried the old drag and drop method but it spammed my console with “Could not find Paper-192” after the next restart and I changed the jar in my ./start.sh file to Paper.jar so I’m a little confused :s

Thanks in advance,

A noob