Unable to download data from https://rubygems.org/ - SSL_connect

If you are getting:

Unable to download data from https://rubygems.org/ - SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed ...

Its most likely your gem gem is outdated.

Try updating via:

gem update --system

then try to install your gem as required

if it still fails, try using raggi brew update

brew tap raggi/ale
$ brew install openssl-osx-ca

as referred from here:

http://railsapps.github.io/openssl-certificate-verify-failed.html