WordPress error: cURL error 60: SSL certificate problem: unable to get local issuer certificate

Easy fix.

Error when updating WordPress on new install: cURL error 60: SSL certificate problem: unable to get local issuer certificate

ou can download and replace them with new ones.

1. Download the new ca-bundle.crt file from: https://github.com/WordPress/WordPress/blob/master/wp-includes/certificates/ca-bundle.crt
2. Place the ca-bundle.crt file in the WordPress directory: /wp-includes/certificates/ca-bundle.crt (you can remove the old file).
3. Run the WordPress update.