diff --git a/.github/workflows/backend-tests.yml b/.github/workflows/backend-tests.yml
index 2ff211380..d7d870c11 100644
--- a/.github/workflows/backend-tests.yml
+++ b/.github/workflows/backend-tests.yml
@@ -47,10 +47,10 @@ jobs:
         run: pnpm config set auto-install-peers false
       -
         name: Install libreoffice
-        run: |
-          sudo add-apt-repository -y ppa:libreoffice/ppa
-          sudo apt update
-          sudo apt install -y --no-install-recommends libreoffice libreoffice-pdfimport
+        uses: awalsh128/cache-apt-pkgs-action@v1.4.1
+        with:
+          pkgs: libreoffice libreoffice-pdfimport
+          version: 1.0
       -
         name: Install all dependencies and symlink for ep_etherpad-lite
         run: bin/installDeps.sh
@@ -98,10 +98,10 @@ jobs:
         run: pnpm config set auto-install-peers false
       -
         name: Install libreoffice
-        run: |
-          sudo add-apt-repository -y ppa:libreoffice/ppa
-          sudo apt update
-          sudo apt install -y --no-install-recommends libreoffice libreoffice-pdfimport
+        uses: awalsh128/cache-apt-pkgs-action@v1.4.1
+        with:
+          pkgs: libreoffice libreoffice-pdfimport
+          version: 1.0
       -
         name: Install all dependencies and symlink for ep_etherpad-lite
         run: bin/installDeps.sh
diff --git a/.github/workflows/upgrade-from-latest-release.yml b/.github/workflows/upgrade-from-latest-release.yml
index 2a97b8b27..996898a82 100644
--- a/.github/workflows/upgrade-from-latest-release.yml
+++ b/.github/workflows/upgrade-from-latest-release.yml
@@ -79,10 +79,10 @@ jobs:
         run: pnpm config set auto-install-peers false
       -
         name: Install libreoffice
-        run: |
-          sudo add-apt-repository -y ppa:libreoffice/ppa
-          sudo apt update
-          sudo apt install -y --no-install-recommends libreoffice libreoffice-pdfimport
+        uses: awalsh128/cache-apt-pkgs-action@v1.4.1
+        with:
+          pkgs: libreoffice libreoffice-pdfimport
+          version: 1.0
       - name: Get pnpm store directory
         shell: bash
         run: |