diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index e9b4823..4abaa38 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -15,10 +15,10 @@ jobs:
         # due to the way we are testing
         python-version: ["3.11"]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
 
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405  # v6.2.0
         with:
           python-version: ${{ matrix.python-version }}
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 47712ea..673040a 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -30,12 +30,12 @@ jobs:
       id-token: write # This is required for trusted publishing to PyPI
     steps:
       - name: git clone ${{ github.ref_name }}
-        uses: actions/checkout@v4
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
         with:
           ref: ${{ github.ref_name }}
 
       - name: set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405  # v6.2.0
 
       - name: install dependencies
         run: |
@@ -46,7 +46,7 @@ jobs:
         run: python -m build
 
       - name: python - publish package distributions to PyPI
-        uses: pypa/gh-action-pypi-publish@release/v1
+        uses: pypa/gh-action-pypi-publish@cef221092ed1bacb1cc03d23a2d87d1d172e277b  # v1.14.0
         with:
           packages-dir: ./dist
 
diff --git a/.github/workflows/static.yml b/.github/workflows/static.yml
index 24630a3..d44ad3a 100644
--- a/.github/workflows/static.yml
+++ b/.github/workflows/static.yml
@@ -30,14 +30,14 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
       - name: Setup Pages
-        uses: actions/configure-pages@v4
+        uses: actions/configure-pages@45bfe0192ca1faeb007ade9deae92b16b8254a0d  # v6.0.0
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v3
+        uses: actions/upload-pages-artifact@fc324d3547104276b827a68afc52ff2a11cc49c9  # v5.0.0
         with:
           # Upload content directory
           path: "content/"
       - name: Deploy to GitHub Pages
         id: deployment
-        uses: actions/deploy-pages@v4
+        uses: actions/deploy-pages@cd2ce8fcbc39b97be8ca5fce6e763baed58fa128  # v5.0.0