diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 8fdea183..193d6c21 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -3,7 +3,7 @@
 # - https://github.com/actions/runner/issues/646
 
 name: "GitHub Actions CI"
-on: { push: { branches: [ master ] }, pull_request: { branches: [ master ] } }
+on: { push: { branches: [ macos-downgraded-electron ] }, pull_request: { branches: [ master ] } }
 env: { ELECTRON_MAIL_NODE_VERSION: 18, PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD: 1 }
 jobs:
   build-proton-clients:
@@ -35,7 +35,7 @@ jobs:
       - { name: tar artifact, run: tar -cvf proton-clients-artifact.tar ./output/git/backup ./app/assets/db-search-monaco-editor }
       - { name: upload artifact, uses: actions/upload-artifact@v2, with: { name: proton-clients-artifact, path: ./proton-clients-artifact.tar, if-no-files-found: error } }
   build-app:
-    strategy: { matrix: { os: [ ubuntu-20.04, windows-2019, macos-11 ] }, fail-fast: false }
+    strategy: { matrix: { os: [ macos-11 ] }, fail-fast: false }
     runs-on: ${{ matrix.os }}
     steps:
       # <common> TODO use YAML anchors feature when it gets supported
@@ -49,13 +49,14 @@ jobs:
       - { name: envinfo, run: npx envinfo }
       - { name: install node modules, run: "pnpm install --frozen-lockfile --reporter=append-only" }
       # </common>
+      - { name: downgrade electron, run: 'pnpm add -D electron@26' }
       - { name: build, run: 'npm exec --package=npm-run-all -- npm-run-all lint build' }
       - { name: print ./app files, shell: bash, run: ./scripts/ci/list-fs-content.sh ./app }
       - { name: upload artifact, uses: actions/upload-artifact@v2, with: { name: 'app-artifact-${{ runner.os }}', path: ./app, if-no-files-found: error } }
   package-app:
     if: github.event_name == 'push'
     needs: [ build-proton-clients, build-app ]
-    strategy: { matrix: { os: [ ubuntu-20.04, windows-2019, macos-11, macos-latest ] }, fail-fast: false }
+    strategy: { matrix: { os: [ macos-11 ] }, fail-fast: false }
     runs-on: ${{ matrix.os }}
     steps:
       # <common> TODO use YAML anchors feature when it gets supported
@@ -69,6 +70,7 @@ jobs:
       - { name: envinfo, run: npx envinfo }
       - { name: install node modules, run: "pnpm install --frozen-lockfile --reporter=append-only" }
       # </common>
+      - { name: downgrade electron, run: 'pnpm add -D electron@26' }
       - { name: download proton clients artifact, uses: actions/download-artifact@v2, with: { name: proton-clients-artifact } }
       - { name: unpack proton clients artifact, shell: bash, run: tar -xvf ./proton-clients-artifact.tar }
       - { name: download app artifact, uses: actions/download-artifact@v2, with: { name: 'app-artifact-${{ runner.os }}', path: ./app } }
@@ -77,6 +79,7 @@ jobs:
       - { name: build, if: runner.os == 'Windows', run: ./scripts/ci/github/package-app.ps1 }
       - { name: build, if: runner.os == 'Linux', run: ./scripts/ci/github/package-app-linux.sh }
       - { name: build, if: matrix.os == 'macos-11', run: ./scripts/ci/github/package-app-osx.sh, env: { MACOSX_DEPLOYMENT_TARGET: "10.10" } }
+      - { name: upload app package, if: matrix.os == 'macos-11', uses: actions/upload-artifact@v3, with: { name: 'app-package-dmg-${{ matrix.os }}', path: ./dist/*.dmg, if-no-files-found: error } }
       - { name: build, if: matrix.os == 'macos-latest', run: ./scripts/ci/github/package-app-osx.sh, env: { MACOSX_DEPLOYMENT_TARGET: "11.0", ELECTRON_DEST_MAIL_ARCH: "arm64" } }
       - name: upload e2e/spectron output
         if: ${{ always() }}
diff --git a/scripts/ci/github/package-app-osx.sh b/scripts/ci/github/package-app-osx.sh
index 87072608..28f24acc 100755
--- a/scripts/ci/github/package-app-osx.sh
+++ b/scripts/ci/github/package-app-osx.sh
@@ -28,5 +28,5 @@ echo "::endgroup::"
 
 echo "::group::hash & upload"
 pnpm run scripts/dist-packages/print-hashes
-pnpm run scripts/dist-packages/upload
+# pnpm run scripts/dist-packages/upload
 echo "::endgroup::"