nokogiri インストールエラー

bundle install を行うと

An error occurred while installing nokogiri (1.10.4), and Bundler cannot continue.
Make sure that `gem install nokogiri -v '1.10.4' --source 'https://rubygems.org/'` succeeds before bundling.

と表示され、

sudo gem install nokogiri -v '1.10.4' --source 'https://rubygems.org/'

を実行すると、下記のエラーが表示されてしまいます。

current directory: /Library/Ruby/Gems/2.3.0/gems/nokogiri-1.10.4/ext/nokogiri
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/bin/ruby -r ./siteconf20191013-21824-1mbm2ea.rb extconf.rb
Ignoring bcrypt-3.1.11 because its extensions are not built. Try: gem pristine bcrypt --version 3.1.11
Ignoring binding_of_caller-0.7.2 because its extensions are not built. Try: gem pristine binding_of_caller --version 0.7.2
Ignoring byebug-9.0.6 because its extensions are not built. Try: gem pristine byebug --version 9.0.6
Ignoring byebug-5.0.0 because its extensions are not built. Try: gem pristine byebug --version 5.0.0
Ignoring debug_inspector-0.0.2 because its extensions are not built. Try: gem pristine debug_inspector --version 0.0.2
mkmf.rb can't find header files for ruby at /System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/include/ruby.h

extconf failed, exit code 1

原因不明なので、ご教示お願い致します。