I've published a new draft of SRFI 113 in which John Cowan,
the author, added this note:

  Post-finalization note: Because SRFI 114 has been
  deprecated by SRFI 128, it is recommended that
  implementers make use of SRFI 128 rather than SRFI 114
  comparators where comparators are specified in this SRFI.
  Specifically, the procedures set, bag, set-unfold,
  bag-unfold, set-map, list->set, list->bag, and alist->bag,
  should accept SRFI 128 rather than SRFI 114 comparators as
  arguments.  By the same token, the results of
  set-element-comparator and bag-element-comparator, as well
  as the values of set-comparator and bag-comparator, should
  be SRFI 128 comparators.  The sample implementation has
  been updated to depend on SRFI 128 rather than SRFI 114.

Regards,

SRFI Editor