diff --git a/.github/actions/install-examples/action.yml b/.github/actions/install-examples/action.yml
index 608fc4fc..8bc751c6 100644
--- a/.github/actions/install-examples/action.yml
+++ b/.github/actions/install-examples/action.yml
@@ -18,7 +18,7 @@ runs:
 
     - name: Restore Examples installation
       id: restore
-      uses: actions/cache/restore@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9
+      uses: actions/cache/restore@6849a6489940f00c2f30c0fb92c6274307ccb58a
       with:
         path: venv
         key: install-examples-${{ steps.install-meltingpot.outputs.key }}-${{ hashFiles('examples/requirements.txt') }}
@@ -51,7 +51,7 @@ runs:
 
     - name: Save Examples installation
       if: steps.restore.outputs.cache-hit != 'true'
-      uses: actions/cache/save@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9
+      uses: actions/cache/save@6849a6489940f00c2f30c0fb92c6274307ccb58a
       with:
         path: venv
         key: ${{ steps.restore.outputs.cache-primary-key }}
diff --git a/.github/actions/install-meltingpot/action.yml b/.github/actions/install-meltingpot/action.yml
index 262466f5..b3e9fc95 100644
--- a/.github/actions/install-meltingpot/action.yml
+++ b/.github/actions/install-meltingpot/action.yml
@@ -17,7 +17,7 @@ runs:
   steps:
     - name: Set up Python ${{ inputs.python-version }}
       id: setup-python
-      uses: actions/setup-python@f677139bbe7f9c59b41e40162b753c062f5d49a3
+      uses: actions/setup-python@0b93645e9fea7318ecaed2b359559ac225c90a2b
       with:
         python-version: ${{ inputs.python-version }}
 
@@ -38,7 +38,7 @@ runs:
 
     - name: Restore Melting Pot installation
       id: restore
-      uses: actions/cache/restore@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9
+      uses: actions/cache/restore@6849a6489940f00c2f30c0fb92c6274307ccb58a
       with:
         path: |
           meltingpot/assets
@@ -79,7 +79,7 @@ runs:
 
     - name: Save Melting Pot installation
       if: steps.restore.outputs.cache-hit != 'true'
-      uses: actions/cache/save@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9
+      uses: actions/cache/save@6849a6489940f00c2f30c0fb92c6274307ccb58a
       with:
         path:  |
           meltingpot/assets
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 34effaa4..e9705da7 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -28,11 +28,11 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938
+      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
-      uses: github/codeql-action/init@e2b3eafc8d227b0241d48be5f425d47c2d750a13
+      uses: github/codeql-action/init@662472033e021d55d94146f66f6058822b0b39fd
       with:
         languages: ${{ matrix.language }}
         # If you wish to specify custom queries, you can do so here or in a config file.
@@ -46,7 +46,7 @@ jobs:
     # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
     # If this step fails, then you should remove it and run the build manually (see below)
     - name: Autobuild
-      uses: github/codeql-action/autobuild@e2b3eafc8d227b0241d48be5f425d47c2d750a13
+      uses: github/codeql-action/autobuild@662472033e021d55d94146f66f6058822b0b39fd
 
     # ℹ️ Command-line programs to run using the OS shell.
     # 📚 See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsrun
@@ -59,4 +59,4 @@ jobs:
     #   ./location_of_script_within_repo/buildscript.sh
 
     - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@e2b3eafc8d227b0241d48be5f425d47c2d750a13
+      uses: github/codeql-action/analyze@662472033e021d55d94146f66f6058822b0b39fd
diff --git a/.github/workflows/pypi-publish.yml b/.github/workflows/pypi-publish.yml
index 1433cd3d..7fa1e33c 100644
--- a/.github/workflows/pypi-publish.yml
+++ b/.github/workflows/pypi-publish.yml
@@ -30,7 +30,7 @@ jobs:
     timeout-minutes: 20
     steps:
       - name: Checkout Melting Pot
-        uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
       - name: Show Python setup
         run: |
           python --version
@@ -38,7 +38,7 @@ jobs:
       - name: Build distribution
         run: python setup.py sdist
       - name: Save artifact
-        uses: actions/upload-artifact@50769540e7f4bd5e21e526ee35c689e35e0d6874
+        uses: actions/upload-artifact@b4b15b8c7c6ac21ea08fcf65892d2ee8f75cf882
         with:
           name: dist
           path: ./dist
@@ -69,7 +69,7 @@ jobs:
           name: dist
           path: ./dist
       - name: Set up Python
-        uses: actions/setup-python@f677139bbe7f9c59b41e40162b753c062f5d49a3
+        uses: actions/setup-python@0b93645e9fea7318ecaed2b359559ac225c90a2b
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install Python dependencies
@@ -104,12 +104,12 @@ jobs:
           path: ./dist
       - name: Publish to TestPyPI
         if: github.event_name == 'release' || inputs.upload_to_test_pypi
-        uses: pypa/gh-action-pypi-publish@897895f1e160c830e369f9779632ebc134688e1b
+        uses: pypa/gh-action-pypi-publish@fb13cb306901256ace3dab689990e13a5550ffaa
         with:
           repository-url: https://test.pypi.org/legacy/
           verbose: true
       - name: Publish to PyPI
         if: github.event_name == 'release' || inputs.upload_to_pypi
-        uses: pypa/gh-action-pypi-publish@897895f1e160c830e369f9779632ebc134688e1b
+        uses: pypa/gh-action-pypi-publish@fb13cb306901256ace3dab689990e13a5550ffaa
         with:
           verbose: true
diff --git a/.github/workflows/pypi-test.yml b/.github/workflows/pypi-test.yml
index 3c0a2101..59c013ea 100644
--- a/.github/workflows/pypi-test.yml
+++ b/.github/workflows/pypi-test.yml
@@ -50,7 +50,7 @@ jobs:
 
     steps:
       - name: Set up Python ${{ matrix.python_version }}
-        uses: actions/setup-python@f677139bbe7f9c59b41e40162b753c062f5d49a3
+        uses: actions/setup-python@0b93645e9fea7318ecaed2b359559ac225c90a2b
         with:
           python-version: ${{ matrix.python-version }}
 
diff --git a/.github/workflows/scorecards-analysis.yml b/.github/workflows/scorecards-analysis.yml
index c4a41204..f0f3396b 100644
--- a/.github/workflows/scorecards-analysis.yml
+++ b/.github/workflows/scorecards-analysis.yml
@@ -25,7 +25,7 @@ jobs:
 
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
         with:
           persist-credentials: false
 
@@ -49,7 +49,7 @@ jobs:
       # Upload the results as artifacts (optional). Commenting out will disable uploads of run results in SARIF
       # format to the repository Actions tab.
       - name: "Upload artifact"
-        uses: actions/upload-artifact@50769540e7f4bd5e21e526ee35c689e35e0d6874
+        uses: actions/upload-artifact@b4b15b8c7c6ac21ea08fcf65892d2ee8f75cf882
         with:
           name: SARIF file
           path: results.sarif
@@ -57,6 +57,6 @@ jobs:
 
       # Upload the results to GitHub's code scanning dashboard.
       - name: "Upload to code-scanning"
-        uses: github/codeql-action/upload-sarif@e2b3eafc8d227b0241d48be5f425d47c2d750a13
+        uses: github/codeql-action/upload-sarif@662472033e021d55d94146f66f6058822b0b39fd
         with:
           sarif_file: results.sarif
diff --git a/.github/workflows/test-examples.yml b/.github/workflows/test-examples.yml
index cd30df89..820ec8f5 100644
--- a/.github/workflows/test-examples.yml
+++ b/.github/workflows/test-examples.yml
@@ -40,7 +40,7 @@ jobs:
     timeout-minutes: 90
     steps:
       - name: Checkout Melting Pot
-        uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
 
       - name: Install examples
         uses: ./.github/actions/install-examples
diff --git a/.github/workflows/test-meltingpot.yml b/.github/workflows/test-meltingpot.yml
index 1e3a817f..231fedc1 100644
--- a/.github/workflows/test-meltingpot.yml
+++ b/.github/workflows/test-meltingpot.yml
@@ -35,7 +35,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Melting Pot
-        uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
 
       - name: Install Melting Pot
         uses: ./.github/actions/install-meltingpot