diff --git a/.github/workflows/build-book.yml b/.github/workflows/build-book.yml
index c2a2d4c8..4eff65f6 100644
--- a/.github/workflows/build-book.yml
+++ b/.github/workflows/build-book.yml
@@ -38,7 +38,7 @@ jobs:
         run: echo "::set-output name=dir::$(pip cache dir)"
 
       - name: Cache dependencies
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ${{ steps.pip-cache.outputs.dir }}
           key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
@@ -53,7 +53,7 @@ jobs:
 
       # Save html as artifact
       - name: Save book html as artifact for viewing
-        uses: actions/upload-artifact@330a01c490aca151604b8cf639adc76d48f6c5d4 # v5.0.0
+        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6.0.0
         with:
           name: book-html
           path: |