struggling with GRANT while upgrading from 13 to 16

Hi all,

I’m getting

ERROR:  permission denied to grant privileges as role "axel"
DETAIL:  The grantor must have the ADMIN option on role "daemons".
ERROR:  permission denied to grant privileges as role "axel"
DETAIL:  The grantor must have the ADMIN option on role "daemons".
ERROR:  permission denied to grant privileges as role "axel"
DETAIL:  The grantor must have the ADMIN option on role "xtrole".
ERROR:  permission denied to grant privileges as role "axel"
DETAIL:  The grantor must have the ADMIN option on role "xtrole".

while trying load a dump from 13 into 16 server.

Correcting this on 13 seems impossible as new syntax/options are required.

What would be the upgrade path to fix this?
What would be the SQL phrase to do it ?

Any help appreciated,
Axel
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