diff --git a/.vim/autoload/plug.vim b/.vim/autoload/plug.vim
index b3bc1a6..15f4e1f 100644
--- a/.vim/autoload/plug.vim
+++ b/.vim/autoload/plug.vim
@@ -846,13 +846,14 @@ function! s:names(...)
 endfunction
 
 function! s:check_ruby()
-  silent! ruby require 'thread'; VIM::command('let g:plug_ruby = 1')
-  if get(g:, 'plug_ruby', 0)
-    unlet g:plug_ruby
-    return 1
+  silent! ruby require 'thread'; VIM::command("let g:plug_ruby = '#{RUBY_VERSION}'")
+  if !exists('g:plug_ruby')
+    redraw!
+    return s:warn('echom', 'Warning: Ruby interface is broken')
   endif
-  redraw!
-  return s:warn('echom', 'Warning: Ruby interface is broken')
+  let ruby_version = split(g:plug_ruby, '\.')
+  unlet g:plug_ruby
+  return s:version_requirement(ruby_version, [1, 8, 7])
 endfunction
 
 function! s:update_impl(pull, force, args) abort
diff --git a/.vim/plugins.vim b/.vim/plugins.vim
index 7e5bfc0..85ad2a6 100644
--- a/.vim/plugins.vim
+++ b/.vim/plugins.vim
@@ -39,7 +39,7 @@ Plug 'https://github.com/vim-airline/vim-airline.git'
 Plug 'https://github.com/vim-latex/vim-latex.git'
 
 if has('unix')
-    Plug 'https://github.com/Valloric/YouCompleteMe.git', { 'do': './install.sh --clang-completer' }
+    Plug 'https://github.com/Valloric/YouCompleteMe.git', { 'do': './install.sh' }
     Plug 'https://github.com/marijnh/tern_for_vim', { 'do': 'sudo npm install -g tern; npm install' }
     Plug 'https://github.com/scrooloose/syntastic.git', { 'do': 'sudo npm -g install eslint; sudo pip install --upgrade pyflakes' }
 endif