diff --git a/brew/Brewfile b/brew/Brewfile
index 3586488..37918a3 100644
--- a/brew/Brewfile
+++ b/brew/Brewfile
@@ -10,6 +10,7 @@ tap "yoheimuta/protolint"
 brew "coreutils"
 brew "curlie"
 brew "dateutils"
+brew "difftastic"
 brew "direnv"
 brew "entr"
 brew "fd"