Error when trying to update composer or running composer update command?

Question

Digital certificates

Actually, when executing the composer update or composer self-update command, I get an error

[Composer\Downloader\TransportException]                                     
  The "http://packagist.org/p/pingpong/admin$272a2609632d2893a6e020bebfb9d4c6  
  0828b777d7620d2ab7b3329f49ce3ebc.json" file could not be downloaded: SSL op  
  eration failed with code 1. OpenSSL Error messages:                          
  error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify   
  failed                                                                       
  Failed to enable crypto                                                      
  failed to open stream: operation failed

I tried to google, but the level of English did not allow me to understand the essence of the problem and how to solve it.
PS: Worth the latest xampp (5.6.3) on the latest macos x