Migrate Meteor project from Windows to Mac

I have been writing an app in Meteor in Windows but just got a Mac and am trying to move the project over. I followed the step for installing Meteor for OS X and then checked out the project from Github (I’m working in Webstorm).

The project still includes the Windows version of Meteor though. The release file shows WINDOWS-PREVIEW@0.3.0 and if I run meteor update, the console returns This project is already at WINDOWS-PREVIEW@0.3.0, the latest release.

The app runs fine on the Mac in local. How can I switch out the Meteor version in the existing project? Or do I need to create a new project and drop in my folders? Thank you.