diff --git a/home/dot_Brewfile b/home/dot_Brewfile
index 9d29a2f..f4e14b9 100644
--- a/home/dot_Brewfile
+++ b/home/dot_Brewfile
@@ -5,6 +5,9 @@ brew "emacs"
 brew "python"
 brew "jq"
 
+# OpenAI Codex CLI
+cask "codex"
+
 # Password-store secrets used by chezmoi templates
 brew "pass"
 brew "gnupg"