misaligned openSSL in OSX?

Errors are being generated on OSX 10.13.6 when using curl with protocol https, but not with browsers. curl https://letsencrypt.org/ curl: (60) SSL certificate problem: certificate has expired Thus the browsers seem to have their own TLS libraries with a different result from the system. When querying: > openssl version LibreSSL 2.2.7 Yet there is a directory /usr/local/Cellar/openssl@1.1/ I believe these errors would be removed if the system were relying on openSSL 1.1. How can that be set?