New contract signing ‘auto renewal’ of contract vs a regular contract with no end date.

My employer wants me to sign a new contract different than the one I signed when I first started with them in 2020. The new contract basically has an ‘automatic annual renewal’ where it only lasts a year and renews automatically. Can they force me to sign this new contract? Can they fire me if I refuse to sign this new contract that is completely different than the original one I signed?