How to upgrade the Pagerduty version in ServiceNow from v7.9 to v8

[BabySingh17]

Need to upgrade the existing intergration with Pagerduty from v7.9 to v8.

Help me with the process how to do that. 

[tim_treacy]

I'm not seeing any guides on the ServiceNow side.

If you've not found it already, I'd recommend starting with PagerDuty's Guide.