'React.js : How to start a react application on a different port

I just have started learning React.js and made two projects using Create React App.

Now if I want to start both projects at the same time, I can't because both start on port 3000 by default.

Is there any way I can change the default port of one of them to something else like http://localhost:3001 and run them simultaneously?

Note: I'm a Windows user

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