# Changing the Stack
Project Stacks define various aspects of how the project is run - including the version of Node-RED being used.
FlowForge allows you to change the stack a project is using - providing a way to upgrade Node-RED.
Note: Stacks are created by Administrators and made available to the teams and users of the platform.
When an Administrator creates a new version of a Stack your project is using, the platform will notify you that there is a new version available.
To change a project's stack:
- Go to the project's page and select Settings in the sidebar.
- Select the Danger section in the side menu
- Click the Change Project Stack button
- You will be prompted to select the new stack for the project.
- Click Change Stack
Your project will now be restart on the new stack.
Note: Changing the stack causes the project to be stopped and restarted. This will require a short downtime of the project flows.