diff --git a/.Brewfile b/.Brewfile
index b46ec7c..3adf2f0 100644
--- a/.Brewfile
+++ b/.Brewfile
@@ -1,4 +1,5 @@
 tap "caskroom/versions"
+tap "buo/homebrew-cask-upgrade"
 
 brew "ack"
 brew "archey"