Package check result: NOTE

Check: CRAN incoming feasibility, Result: NOTE
  Maintainer: ‘Rob Hyndman <Rob.Hyndman@monash.edu>’
  
  Found the following (possibly) invalid URLs:
    URL: https://www.foastat.org/
      From: inst/doc/JSS2008.pdf
      Status: Error
      Message: SSL peer certificate or SSH remote key was not OK [www.foastat.org]:
        SSL certificate verification failed: certificate has expired. (CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none)

No changes to worse in reverse depends.