diff --git a/.Brewfile b/.Brewfile
index 318dd4b..c2878b9 100644
--- a/.Brewfile
+++ b/.Brewfile
@@ -1,6 +1,7 @@
 tap "buildpacks/tap"
 tap "homebrew/bundle"
 tap "homebrew/core"
+tap "sachaos/todoist"
 brew "arduino-cli"
 brew "bash-completion"
 brew "bat"
@@ -10,8 +11,10 @@ brew "git"
 brew "go"
 brew "hadolint"
 brew "hugo"
+brew "mdbook"
 brew "mkcert"
 brew "rclone"
 brew "ripgrep"
 brew "ruby"
 brew "buildpacks/tap/pack"
+brew "sachaos/todoist/todoist"