diff --git a/README.md b/README.md
index 29733f0..b8fcd97 100644
--- a/README.md
+++ b/README.md
@@ -80,7 +80,7 @@ Read on to learn what YADR provides!
 
 Homebrew is _the missing package manager for OSX_. Installed automatically.
 
-We automatically install a few useful packages including ack, ctags, git, and hub, and the silver searcher ('ag')
+We automatically install a few useful packages including ctags, git, and hub, and the silver searcher ('ag')
 You can install macvim from brew as well, or download it from their website.
 
 ### Github Issues: [ghi gem](https://github.com/stephencelis/ghi)
@@ -413,6 +413,7 @@ If you omit the key combo, you'll get a list of all the maps. You can do the sam
  * color_highlight - use :ColorCodes to see hex colors highlighted
  * change-inside-surroundings - change content inside delimiters like quotes/brackets
  * Specky - used for color highlighting rspec correctly even if specs live outside of spec/ (rails.vim doesn't handle this)
+ * Ag - use :Ag to search across multiple files. Faster than Grep and Ack.
 
 #### General enhancements that don't add new commands
 
diff --git a/Rakefile b/Rakefile
index ffa9199..0e57f1d 100644
--- a/Rakefile
+++ b/Rakefile
@@ -144,7 +144,7 @@ def install_homebrew
   puts "======================================================"
   puts "Installing Homebrew packages...There may be some warnings."
   puts "======================================================"
-  run %{brew install zsh ack ctags git hub tmux reattach-to-user-namespace the_silver_searcher}
+  run %{brew install zsh ctags git hub tmux reattach-to-user-namespace the_silver_searcher}
   puts
   puts
 end
diff --git a/vim/plugin/settings/quickfix-search.vim b/vim/plugin/settings/quickfix-search.vim
index c4c78c5..e1d8e7e 100644
--- a/vim/plugin/settings/quickfix-search.vim
+++ b/vim/plugin/settings/quickfix-search.vim
@@ -2,8 +2,8 @@
 " Open a Quickfix window for the last search.
 nnoremap <silent> <leader>q/ :execute 'vimgrep /'.@/.'/g %'<CR>:copen<CR>
 
-" Ack for the last search.
-nnoremap <silent> <leader>qa/ :execute "Ack! '" . substitute(substitute(substitute(@/, "\\\\<", "\\\\b", ""), "\\\\>", "\\\\b", ""), "\\\\v", "", "") . "'"<CR>
+" Ag for the last search.
+nnoremap <silent> <leader>qa/ :execute "Ag! '" . substitute(substitute(substitute(@/, "\\\\<", "\\\\b", ""), "\\\\>", "\\\\b", ""), "\\\\v", "", "") . "'"<CR>
 
 " GitGrep the last search (my own invention)
 nnoremap <silent> <leader>qg/ :execute "GitGrep '" . substitute(substitute(substitute(@/, "\\\\<", "\\\\b", ""), "\\\\>", "\\\\b", ""), "\\\\v", "", "") . "'"<CR>
diff --git a/vim/vundles.vim b/vim/vundles.vim
index 1645067..26a214a 100644
--- a/vim/vundles.vim
+++ b/vim/vundles.vim
@@ -48,7 +48,7 @@ Bundle "tpope/vim-git"
 Bundle "vim-scripts/lastpos.vim"
 Bundle "sjl/gundo.vim"
 Bundle "vim-scripts/sudo.vim"
-Bundle "mileszs/ack.vim"
+Bundle "rking/ag.vim"
 Bundle "nelstrom/vim-textobj-rubyblock"
 Bundle "kana/vim-textobj-user"
 Bundle "austintaylor/vim-indentobject"