Certificate Authority – CA Signature Algorithm: sha256WithRSAEncryption or ecdsa-with-SHA256

I need to update a certification authority that is currently running and is currently in use Signature algorithm 256WithRSAEncryption and I think in use ecdsa-with-SHA256 with something like:

openssl req -x509 -nodes-days 3650 
-newkey ec: <(openssl ecparam -name prime256v1) 
keyout certificates / CA.pem -out certificates / CA.crt -subj "/ CN = myCA"

Aside from updating, restoring existing certificates, and asking if there's anything I should look for in use ecdsda signatures