ALTER TABLE in Postgres with a subquery

Question

I am trying to update the identity sequence in my table, but I am getting a syntax error.

This works:

ALTER TABLE "ApiResourceScopes" ALTER COLUMN "Id"
   RESTART SET START 145

This doesn't work:

ALTER TABLE "ApiResourceScopes" ALTER COLUMN "Id"
   RESTART SET START (
      select coalesce(max("Id"), '0') + 1 as "Id"
      FROM public."ApiResourceScopes"
   )

How could I set a value with a subquery in an ALTER TABLE statement?

Note: my table foes not have nextval('somesequence') in the column default, but an identity column, so directly updating the sequence is not an option.