In order to re-publish a previous work under new terms you might need to check your rights status. If you have previously signed away rights to a publication and wish to regain these you can check your possibilities on Termination of Transfer Tool, which is co-stewarded by Authors Alliance and Creative Commons, and forms part of our rights retention strategy.
"Is the ToT Tool Useful For Me?" from https://rightsback.org/ by Authors Alliance and Creative Commons/ CC BY 4.0.
To read more about the Termination of Transfer Tool and see if you can regain your publication right: https://rightsback.org/