There is an ongoing outage on the primary CPAN mirror. It is possible to work around the issue by using MetaCPAN as a mirror.

Summary of important user-visible changes for Bio-Procedural
------------------------------------------------------------

1.7.4     2019-11-29 14:46:16-06:00 America/Chicago
  * Make abstract for distribution more specific (minor fix)

1.7.3     2019-11-29 14:32:24-06:00 America/Chicago
  * First release after split from bioperl-live.