Connect dashboard to updated report

Hi, 

I built a report in Desktop and Published it to Power BI Service, where I created a dashboard. I made some simple edits to the report within Service, then downloaded the .pbix file and made further edits in Desktop.

I then re-published the report to the Service.

How do I repoint the dashboard to the new version of the report?

I have tried re-publishing the report with the same file name as the original report, but Power BI doesn't recognise they are the same. I end up with 2 reports with the same file name in the Service.

Thanks in advance?