diff --git a/.github/workflows/_build.yml b/.github/workflows/_build.yml
index 7cec845..e5a35f4 100644
--- a/.github/workflows/_build.yml
+++ b/.github/workflows/_build.yml
@@ -143,9 +143,17 @@ jobs:
           ruby-version: 2.7
       - name: Update homebrew
         run: brew update
+      - name: Fix system python breaking homebrew
+        run: >-
+          find /usr/local/bin -type l
+          -ilname '*/Library/Frameworks/Python.framework/*'
+          -delete
       - name: Install dependencies
         run: make bootstrap-ci
         working-directory: builder
+        env:
+          HOMEBREW_NO_AUTO_UPDATE: "1"
+          HOMEBREW_NO_INSTALL_CLEANUP: "1"
       - name: Download build-plan artifact
         uses: actions/download-artifact@v3
         with:
diff --git a/.github/workflows/_prepare.yml b/.github/workflows/_prepare.yml
index 5cacc3d..96267b7 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: "v0.6.40"
+        default: "v0.6.41"
     secrets:
       TAP_REPO_TOKEN:
         description: Personal Access Token for Homebrew Tap repo