diff --git a/Brewfile b/Brewfile
index a2a3902..8e983b9 100644
--- a/Brewfile
+++ b/Brewfile
@@ -1,5 +1,6 @@
 tap "thoughtbot/formulae"
 tap "heroku/brew"
+tap "koekeishiya/formulae"
 brew "asdf"
 brew "chunkwm"
 brew "diceware"