ruby issue with vim in Mojave

After upgrading to Mojave, whenever I run "ruby p RUBY_VERSION" command in vim, I get the following error:

/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubyge ms/specification.rb:17:in `require': incompatible library version - /System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/unive rsal-darwin18/stringio.bundle (LoadError)

from /System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubyg ems/specification.rb:17:in `<top (required)>'

from /System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubyg ems.rb:1230:in `require'

from /System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubyg ems.rb:1230:in `<module:Gem>'

from /System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubyg ems.rb:116:in `<top (required)>'

from <internal:gem_prelude>:4:in `require'

from <internal:gem_prelude>:4:in `<internal:gem_prelude>'