diff --git a/.github/workflows/gh-pages-deploy.yml b/.github/workflows/gh-pages-deploy.yml
index 751b8ef..1edb1c5 100644
--- a/.github/workflows/gh-pages-deploy.yml
+++ b/.github/workflows/gh-pages-deploy.yml
@@ -13,7 +13,7 @@ jobs:
     if: "!contains(github.event.head_commit.message, 'slides skip')"
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2.3.4
+    - uses: actions/checkout@v3.3.0
     - name: Install 
       run: |
         sudo apt install ruby ruby-bundler