Step 1 : Log into N99panel. From under N99panel dashboard, click 'List Users'

Step 2 : You will see the list of all the users. Please click 'View/Change Node CLI version' link against the appropriate user

Step 3 : here you are show the current Node CLI version and also the option to select the new Node CLI version. Imp. - When you change the Node CLI version, you would need to logout of the existing SSH session(s) and re-login to use the update CLI version