Renaming Power BI files without breaking semantic model refresh

Hi community, 

This seems like a silly question but I cannot seem to figure it out. 

So I recently created 2 separate reports on Power BI desktop:

For context, the data source for the top report references a published semantic model which is that of the bottom report. 

I recently finalized both reports and would now like to rename them. 

I tried taking the approach of renaming from Power BI service. However, since I am referencing the semantic model from one of them, the model breaks when I rename them, saying that it does not know what source I am referring to. Therefore I changed everything back in order not to break anything further. 

My thought process is that if i rename the pbix files, whenever I have to republish, it will publish a new model instead of replacing the existing one.

Does anyone know of a best practice to rename my pbix files without breaking anything?

Cheers.