diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 5141b50..866dbeb 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -19,16 +19,16 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
       - name: Setup Pages
-        uses: actions/configure-pages@v3
+        uses: actions/configure-pages@f156874f8191504dae5b037505266ed5dda6c382 # v3
       - name: Build with Jekyll
-        uses: actions/jekyll-build-pages@v1
+        uses: actions/jekyll-build-pages@e4ef22193c23ea849fc3fea6dbce69da1ee65b6d # v1
         with:
           source: ./docs
           destination: ./_site
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v1
+        uses: actions/upload-pages-artifact@a753861a5debcf57bf8b404356158c8e1e33150c # v2
 
   # Deployment job
   deploy:
@@ -40,4 +40,4 @@ jobs:
     steps:
       - name: Deploy to GitHub Pages
         id: deployment
-        uses: actions/deploy-pages@v1
+        uses: actions/deploy-pages@9dbe3824824f8a1377b8e298bafde1a50ede43e5 # v2