diff --git a/.github/workflows/pdf-build.yml b/.github/workflows/pdf-build.yml
index dfcbf50..4d42c96 100644
--- a/.github/workflows/pdf-build.yml
+++ b/.github/workflows/pdf-build.yml
@@ -21,7 +21,7 @@ jobs:
           sudo snap install chromium
           sudo apt-get -q update
           sudo apt-get -qq -y install ghostscript pandoc texlive-xetex librsvg2-bin
-      - uses: actions/cache@v5
+      - uses: actions/cache@v6
         with:
           path: ~/.npm
           key: "${{ runner.os }}-node-"