diff --git a/.github/workflows/env-checks.yml b/.github/workflows/env-checks.yml
index 2b86741..89e4bd0 100644
--- a/.github/workflows/env-checks.yml
+++ b/.github/workflows/env-checks.yml
@@ -47,7 +47,7 @@ jobs:
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
       # checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8  # v5.0.0
 
       # remove the Python version from the file for testing
       - name: strip hardcoded Python version from environment for testing
diff --git a/.github/workflows/publish-slides.yml b/.github/workflows/publish-slides.yml
index 43d542e..972f01a 100644
--- a/.github/workflows/publish-slides.yml
+++ b/.github/workflows/publish-slides.yml
@@ -25,11 +25,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8  # v5.0.0
       - name: Setup Pages
         uses: actions/configure-pages@983d7736d9b0ae728b81ab479565c72886d7745b  # v5.0.0
       - name: Install uv
-        uses: astral-sh/setup-uv@a02a550bdd3185dba2ebb6aa98d77047ce54ad21  # v6.2.1
+        uses: astral-sh/setup-uv@557e51de59eb14aaaba2ed9621916900a91d50c6  # v6.6.1
       - name: Build slides
         run: ./slides/generate_slides.sh regular
       - name: Package files
@@ -37,7 +37,7 @@ jobs:
           mkdir public && \
             cp slides/html/workshop.slides.html public/index.html;
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@56afc609e74202658d3ffba0e8f6dda462b719fa  # v3.0.1
+        uses: actions/upload-pages-artifact@7b1f4a764d45c48632c6b24a0339c27f5614fb0b  # v4.0.0
         with:
           path: public