Report in VS 2015 won't deploy to SSRS 2014

I created a new report in Visual Studio 2015. I set the properties of the project to deploy to SQL Server 2014. When I deploy it, though, it still says that the report was created in a newer version of Reporting Services and errors out. This only applies to the report itself, my shared datasource deploys just fine.

How can I deploy my report?

Thanks!