diff --git a/README.md b/README.md
index c5198c7..3b8aa43 100644
--- a/README.md
+++ b/README.md
@@ -10,6 +10,7 @@
   <a href="https://github.com/jimeh/emacs-builds/releases/latest"><img alt="GitHub release (stable)" src="https://img.shields.io/endpoint?url=https%3A%2F%2Fraw.githubusercontent.com%2Fjimeh%2Fhomebrew-emacs-builds%2Fmeta%2FCasks%2Femacs-app%2Fshield.json"></a>
   <a href="https://github.com/jimeh/emacs-builds/releases?q=pretest&expanded=true"><img alt="GitHub release (pretest)" src="https://img.shields.io/endpoint?url=https%3A%2F%2Fraw.githubusercontent.com%2Fjimeh%2Fhomebrew-emacs-builds%2Fmeta%2FCasks%2Femacs-app-pretest%2Fshield.json"></a>
   <a href="https://github.com/jimeh/emacs-builds/releases?q=master&expanded=true"><img alt="GitHub release (nightly)" src="https://img.shields.io/endpoint?url=https%3A%2F%2Fraw.githubusercontent.com%2Fjimeh%2Fhomebrew-emacs-builds%2Fmeta%2FCasks%2Femacs-app-nightly%2Fshield.json"></a>
+  <a href="https://github.com/jimeh/emacs-builds/releases?q=master&expanded=true"><img alt="GitHub release (monthly)" src="https://img.shields.io/endpoint?url=https%3A%2F%2Fraw.githubusercontent.com%2Fjimeh%2Fhomebrew-emacs-builds%2Fmeta%2FCasks%2Femacs-app-monthly%2Fshield.json"></a>
   <a href="https://github.com/jimeh/emacs-builds/issues/7"><img alt="GitHub release (known good nightly)" src="https://img.shields.io/endpoint?url=https%3A%2F%2Fraw.githubusercontent.com%2Fjimeh%2Fhomebrew-emacs-builds%2Fmeta%2FCasks%2Femacs-app-good%2Fshield.json"></a>
   <a href="https://github.com/jimeh/emacs-builds/issues"><img alt="GitHub issues" src="https://img.shields.io/github/issues-raw/jimeh/emacs-builds?style=flat&logo=github&logoColor=white"></a>
   <a href="https://github.com/jimeh/emacs-builds/pulls"><img alt="GitHub pull requests" src="https://img.shields.io/github/issues-pr-raw/jimeh/emacs-builds?style=flat&logo=github&logoColor=white"></a>