diff --git a/scripts/install_emacs_macos.sh b/scripts/install_emacs_macos.sh
index 1d86c32..b62ae59 100755
--- a/scripts/install_emacs_macos.sh
+++ b/scripts/install_emacs_macos.sh
@@ -144,3 +144,4 @@ brew install pipx
 brew install pyright
 pipx install isort pytest
 brew install coreutils
+brew install ruff