Reason: Incompatible library version: nokogiri.bundle requires version 11.0.0 or later, but libxml2.2.dylib

Reason: Incompatible library version: nokogiri.bundle requires version
11.0.0 or later, but libxml2.2.dylib

I'm getting this error when trying to run rspec in Hartl's tutorial. I've
googled the error, but its never for the specific version and the fixes
don't actually fix my problem. Any help would be appreciated.
Thanks
/Users/Jimbo/.rvm/gems/ruby-2.0.0-p247/gems/nokogiri-1.6.0/lib/nokogiri.rb:28:in
`require': dlopen(/Users/Jimbo/.rvm/gems/ruby-2.0.0-p247/gems/nokogiri-
1.6.0/lib/nokogiri/nokogiri.bundle, 9): Library not loaded:
/Users/Jimbo/.bundler/tmp/22862/gems/nokogiri-1.6.0/ports/i686-apple-
darwin11/libxml2/2.8.0/lib/libxml2.2.dylib (LoadError)
Referenced from: /Users/Jimbo/.rvm/gems/ruby-2.0.0-p247/gems/nokogiri-
1.6.0/lib/nokogiri/nokogiri.bundle
Reason: Incompatible library version: nokogiri.bundle requires version
11.0.0 or later, but libxml2.2.dylib provides version 10.0.0 -
/Users/Jimbo/.rvm/gems/ruby-2.0.0-p247/gems/nokogiri-1.6.0/lib/nokogiri/nokogiri.bundle
from
/Users/Jimbo/.rvm/gems/ruby-2.0.0-p247/gems/nokogiri-1.6.0/lib/nokogiri.rb:28:in
`<top (required)>'
from
/Users/Jimbo/.rvm/gems/ruby-2.0.0-p247/gems/capybara-2.1.0/lib/capybara.rb:2:in
`require'
from
/Users/Jimbo/.rvm/gems/ruby-2.0.0-p247/gems/capybara-2.1.0/lib/capybara.rb:2:in
`<top (required)>'
from
/Users/Jimbo/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in
`require'
from
/Users/Jimbo/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in
`block (2 levels) in require'
from
/Users/Jimbo/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in
`each'
from
/Users/Jimbo/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in
`block in require'
from
/Users/Jimbo/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in
`each'
from
/Users/Jimbo/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in
`require'
from
/Users/Jimbo/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler.rb:132:in
`require'