diff --git a/.github/workflows/make-pdf-1-select.yml b/.github/workflows/make-pdf-1-select.yml
index 7c4c4be59..f5060ce7b 100644
--- a/.github/workflows/make-pdf-1-select.yml
+++ b/.github/workflows/make-pdf-1-select.yml
@@ -43,11 +43,23 @@ jobs:
           ls -l chapters/
           ls -l
 
-      - name: Install PDF requirements
+      # - name: Install PDF requirements
+      #   run: |
+      #     # not: to save time
+      #     # sudo apt-get update > /dev/null
+      #     sh scripts/install_requirements_pdf.sh > /dev/null
+
+      - name: Install PDF requirements using cache
+        uses: awalsh128/cache-apt-pkgs-action@latest
+        with:
+          packages: texlive-xetex texlive-lang-greek texlive-lang-german latexmk
+          version: 1.0
+          # execute_install_scripts: true
+
+      - name: Manual install latexmk to fix caching issue
+        # since cache does not properly work / "convert" not found
         run: |
-          # not: to save time
-          # sudo apt-get update > /dev/null
-          sh scripts/install_requirements_pdf.sh > /dev/null
+          sudo apt-get install latexmk
 
       - name: Print versions
         run: |