diff --git a/.github/workflows/publish-pages.yml b/.github/workflows/publish-pages.yml
index 4e9d044a61..c457a14de3 100644
--- a/.github/workflows/publish-pages.yml
+++ b/.github/workflows/publish-pages.yml
@@ -26,7 +26,7 @@ jobs:
         run: yarn workspace mit-open build-storybook
 
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v3
+        uses: actions/upload-pages-artifact@56afc609e74202658d3ffba0e8f6dda462b719fa # v3
         with:
           path: ./frontends/mit-open/storybook-static
 
@@ -45,4 +45,4 @@ jobs:
     steps:
       - name: Deploy to GitHub Pages
         id: deployment
-        uses: actions/deploy-pages@v4
+        uses: actions/deploy-pages@d6db90164ac5ed86f2b6aed7e0febac5b3c0c03e # v4