How to get rid of this warning of EF in Visual Studio 2019: A version of Entity Framework older than 6.3 is also installed

I just added EntityFramework 6.4.4 to the project with the command:

Install-Package EntityFramework -Version:6.4.4

And then, I enabled migrations. Since then, every time I execute an EF command, I get the warning:

A version of Entity Framework older than 6.3 is also installed. Thenewer tools are running. Use 'EntityFramework\Update-Database' for theolder version.

It's annoying. How can I get rid of it? I have tried to do:

Uninstall-Package EntityFramework -ForceInstall-Package EntityFramework -Pre

But it didn't solve the problem.