diff --git a/.github/workflows/deploy_bookdown.yml b/.github/workflows/deploy_bookdown.yml
index 56d674c..d83619c 100644
--- a/.github/workflows/deploy_bookdown.yml
+++ b/.github/workflows/deploy_bookdown.yml
@@ -24,7 +24,7 @@ jobs:
         run: sudo apt-get install -y fonts-noto-cjk
       - uses: foxsen/actions/setup-tinytex-new@tinytex-v2
         with:
-          cache-version: 3
+          cache-version: 4
       - name: Render Book
         run: export PATH=$PATH:$HOME/bin; make -j8
         shell: bash