diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 8c60bf2..14bf18c 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -34,7 +34,7 @@ jobs:
         uses: actions/checkout@v2
         with:
           repository: jimeh/build-emacs-for-macos
-          ref: "0.4.11"
+          ref: "0.4.12"
           path: builder
       - uses: ruby/setup-ruby@v1
         with: