Signature algorithm SHA256

NFE requires that CSR have the SHA256 algorithm instead of the usual SHA1... We generate key pair in the NWA key storage with 2048 RSA.. Unfortunately the signature algorithm on the key pair is SHA1 and not SHA256 as requested by government. As a result our CSR is rejected.

Is there any way to generate the key pair with signature algorithm SHA256 from Keystorage view (in NWA) or how do we go about generating one?