vagrant up SSL connection issue.

gistfile1.txt

$ vagrant up
Bringing machine 'default' up with 'virtualbox' provider...
[default] Clearing any previously set forwarded ports...
[Berkshelf] This version of the Berkshelf plugin has not been fully tested on this version of Vagrant.
[Berkshelf] You should check for a newer version of vagrant-berkshelf.
[Berkshelf] If you encounter any errors with this version, please report them at https://github.com/RiotGames/vagrant-berkshelf/issues
[Berkshelf] You can also join the discussion in #berkshelf on Freenode.
[Berkshelf] Updating Vagrant's berkshelf: '/home/kelly/.berkshelf/default/vagrant/berkshelf-20131216-19433-d8pdiq-default'
[Berkshelf] Using smaug (0.0.1)
/home/kelly/.vagrant.d/gems/gems/celluloid-0.14.1/lib/celluloid/responses.rb:29:in `value': SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed (Ridley::Errors::ConnectionFailed)
        from /home/kelly/.vagrant.d/gems/gems/celluloid-0.14.1/lib/celluloid/calls.rb:95:in `value'
        from /home/kelly/.vagrant.d/gems/gems/celluloid-0.14.1/lib/celluloid/proxies/sync_proxy.rb:28:in `method_missing'
        from /home/kelly/.vagrant.d/gems/gems/celluloid-0.14.1/lib/celluloid/legacy.rb:14:in `method_missing'
        from /home/kelly/.vagrant.d/gems/gems/celluloid-0.14.1/lib/celluloid/proxies/actor_proxy.rb:25:in `_send_'
        from /home/kelly/.vagrant.d/gems/gems/celluloid-0.14.1/lib/celluloid/pool_manager.rb:41:in `_send_'
        from /home/kelly/.vagrant.d/gems/gems/celluloid-0.14.1/lib/celluloid/pool_manager.rb:122:in `method_missing'
        from /home/kelly/.vagrant.d/gems/gems/celluloid-0.14.1/lib/celluloid/calls.rb:25:in `public_send'
        from /home/kelly/.vagrant.d/gems/gems/celluloid-0.14.1/lib/celluloid/calls.rb:25:in `dispatch'
        from /home/kelly/.vagrant.d/gems/gems/celluloid-0.14.1/lib/celluloid/calls.rb:67:in `dispatch'
        from /home/kelly/.vagrant.d/gems/gems/celluloid-0.14.1/lib/celluloid/actor.rb:326:in `block in handle_message'
        from /home/kelly/.vagrant.d/gems/gems/celluloid-0.14.1/lib/celluloid/tasks.rb:42:in `block in initialize'
        from /home/kelly/.vagrant.d/gems/gems/celluloid-0.14.1/lib/celluloid/tasks/task_fiber.rb:11:in `block in create'
        from (celluloid):0:in `remote procedure call'