diff --git a/.github/workflows/_build.yml b/.github/workflows/_build.yml
index b9ec00e..7dffc10 100644
--- a/.github/workflows/_build.yml
+++ b/.github/workflows/_build.yml
@@ -158,7 +158,9 @@ jobs:
           path: ./
       - name: Build Emacs
         run: >-
-          ./builder/build-emacs-for-macos --plan build-plan.yml
+          ./builder/build-emacs-for-macos
+          --log-level debug
+          --plan build-plan.yml
           --native-full-aot
           ${{ inputs.build_args }}
         env:
diff --git a/.github/workflows/_prepare.yml b/.github/workflows/_prepare.yml
index 96267b7..230b2e2 100644
--- a/.github/workflows/_prepare.yml
+++ b/.github/workflows/_prepare.yml
@@ -7,7 +7,7 @@ on:
         description: Git ref to checkout of build-emacs-for-macos
         required: false
         type: string
-        default: "v0.6.41"
+        default: "v0.6.42"
     secrets:
       TAP_REPO_TOKEN:
         description: Personal Access Token for Homebrew Tap repo