diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 6f40ed1c4a..10c371ad3e 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -6,7 +6,11 @@ updates:
     directory: "/"
     schedule:
       interval: "daily"
+    cooldown:
+      default-days: 7
   - package-ecosystem: "npm"
     directory: "/"
     schedule:
       interval: "daily"
+    cooldown:
+      default-days: 7
diff --git a/.github/workflows/lint-commit.yml b/.github/workflows/lint-commit.yml
index b817e80a6c..d00b6590f8 100644
--- a/.github/workflows/lint-commit.yml
+++ b/.github/workflows/lint-commit.yml
@@ -11,10 +11,11 @@ jobs:
     name: Commit Lint
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v7
+    - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       with:
         fetch-depth: 0
-    - uses: actions/setup-node@v7
+        persist-credentials: false
+    - uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
       with:
         node-version: 22.x
     - run: npm install
diff --git a/.github/workflows/release-please.yml b/.github/workflows/release-please.yml
index 051b53a193..83a6a99f94 100644
--- a/.github/workflows/release-please.yml
+++ b/.github/workflows/release-please.yml
@@ -15,7 +15,7 @@ jobs:
       release_created:  ${{ steps.release.outputs.release_created }}
     runs-on: ubuntu-latest
     steps:
-      - uses: googleapis/release-please-action@v5
+      - uses: googleapis/release-please-action@45996ed1f6d02564a971a2fa1b5860e934307cf7 # v5.0.0
         id: release
         with:
           token: ${{ secrets.GH_USER_TOKEN }}
@@ -36,8 +36,10 @@ jobs:
       contents: read
       id-token: write # to generate npm provenance statements
     steps:
-      - uses: actions/checkout@v7
-      - uses: actions/setup-node@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+      - uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
         with:
           node-version: lts/*
           registry-url: 'https://registry.npmjs.org'
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 1347f7e4bb..867f3b8e4a 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -18,8 +18,10 @@ jobs:
     name: Lint Python
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v7
-    - uses: astral-sh/ruff-action@v4.1.0
+    - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      with:
+        persist-credentials: false
+    - uses: astral-sh/ruff-action@278981a28ce3188b1e39527901f38254bf3aac89 # v4.1.0
       with:
         args: "check --select=E,F,PLC,PLE,UP,W,YTT --ignore=E721,PLC0206,PLC0415,PLC1901,S101,UP031 --target-version=py39"
     - run: ruff format --check --diff
@@ -29,9 +31,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout Repository
-      uses: actions/checkout@v7
+      uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      with:
+        persist-credentials: false
     - name: Use Node.js 22.x
-      uses: actions/setup-node@v7
+      uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
       with:
         node-version: 22.x
     - name: Install Dependencies
@@ -44,9 +48,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout Repository
-      uses: actions/checkout@v7
+      uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      with:
+        persist-credentials: false
     - name: Use Node.js 22.x
-      uses: actions/setup-node@v7
+      uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
       with:
         node-version: 22.x
     - name: Install Dependencies
@@ -63,9 +69,11 @@ jobs:
     timeout-minutes: 30
     steps:
     - name: Checkout Repository
-      uses: actions/checkout@v7
+      uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      with:
+        persist-credentials: false
     - name: Use Node.js 22.x
-      uses: actions/setup-node@v7
+      uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
       with:
         node-version: 22.x
     - name: Update npm
@@ -119,17 +127,19 @@ jobs:
       WASI_SDK_PATH: 'wasi-sdk-25.0'
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v7
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
       - name: Use Node.js ${{ matrix.node }}
-        uses: actions/setup-node@v7
+        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
         with:
           node-version: ${{ matrix.node }}
       - name: Use Python ${{ matrix.python }}
-        uses: actions/setup-python@v7
+        uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
         with:
           python-version: ${{ matrix.python }}
           allow-prereleases: true
-      - uses: seanmiddleditch/gha-setup-ninja@v6
+      - uses: seanmiddleditch/gha-setup-ninja@3b1f8f94a2f8254bd26914c4ab9474d4f0015f67 # v6
       - name: Install wasi-sdk (Windows)
         shell: pwsh
         if: runner.os == 'Windows'
diff --git a/.github/workflows/update-gyp-next.yml b/.github/workflows/update-gyp-next.yml
index aaae835abe..d85154885a 100644
--- a/.github/workflows/update-gyp-next.yml
+++ b/.github/workflows/update-gyp-next.yml
@@ -17,11 +17,11 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           persist-credentials: false
 
-      - uses: actions/github-script@v9
+      - uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
         id: get-gyp-next-version
         with:
           script: |
@@ -33,11 +33,13 @@ jobs:
           result-encoding: string
 
       - name: Update gyp-next
+        env:
+          GYP_NEXT_VERSION: ${{ steps.get-gyp-next-version.outputs.result }}
         run: |
-          python update-gyp.py --no-commit ${{ steps.get-gyp-next-version.outputs.result }}
+          python update-gyp.py --no-commit ${GYP_NEXT_VERSION}
 
       - name: Open or update PR for the gyp-next update
-        uses: gr2m/create-or-update-pull-request-action@v1
+        uses: gr2m/create-or-update-pull-request-action@483e2e5c8e68c420e72687127cfdc30a45254be7 # v1
         with:
           branch: actions/update-gyp-next
           author: Node.js GitHub Bot <github-bot@iojs.org>
diff --git a/.github/workflows/visual-studio.yml b/.github/workflows/visual-studio.yml
index 36abff5843..88514e297f 100644
--- a/.github/workflows/visual-studio.yml
+++ b/.github/workflows/visual-studio.yml
@@ -27,9 +27,11 @@ jobs:
     timeout-minutes: 30
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v7
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
       - name: Use Python 3
-        uses: actions/setup-python@v7
+        uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
         with:
           python-version: "3.x"
       - name: Install Dependencies
diff --git a/gyp/.github/dependabot.yml b/gyp/.github/dependabot.yml
index 58d68276fc..1a5cdb30bd 100644
--- a/gyp/.github/dependabot.yml
+++ b/gyp/.github/dependabot.yml
@@ -10,6 +10,8 @@ updates:
           - "*"  # Group all Actions updates into a single larger pull request
     schedule:
       interval: weekly
+    cooldown:
+      default-days: 7
   - package-ecosystem: "pip"
     directory: "/"
     groups:
@@ -18,3 +20,5 @@ updates:
           - "*"  # Group all pip updates into a single larger pull request
     schedule:
       interval: weekly
+    cooldown:
+      default-days: 7
diff --git a/gyp/.github/workflows/node-gyp.yml b/gyp/.github/workflows/node-gyp.yml
index 016d2e0abc..1271ff3487 100644
--- a/gyp/.github/workflows/node-gyp.yml
+++ b/gyp/.github/workflows/node-gyp.yml
@@ -21,18 +21,20 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - name: Clone gyp-next
-        uses: actions/checkout@v6
+        uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803 # v6.1.0
         with:
           path: gyp-next
+          persist-credentials: false
       - name: Clone nodejs/node-gyp
-        uses: actions/checkout@v6
+        uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803 # v6.1.0
         with:
           repository: nodejs/node-gyp
           path: node-gyp
-      - uses: actions/setup-node@v6
+          persist-credentials: false
+      - uses: actions/setup-node@249970729cb0ef3589644e2896645e5dc5ba9c38 # v6.5.0
         with:
           node-version: "lts/*"
-      - uses: actions/setup-python@v6
+      - uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
         with:
           python-version: ${{ matrix.python-version }}
           allow-prereleases: true
diff --git a/gyp/.github/workflows/nodejs.yml b/gyp/.github/workflows/nodejs.yml
index c88fe7bcf2..b464063231 100644
--- a/gyp/.github/workflows/nodejs.yml
+++ b/gyp/.github/workflows/nodejs.yml
@@ -22,15 +22,17 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - name: Clone gyp-next
-        uses: actions/checkout@v6
+        uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803 # v6.1.0
         with:
           path: gyp-next
+          persist-credentials: false
       - name: Clone nodejs/node
-        uses: actions/checkout@v6
+        uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803 # v6.1.0
         with:
           repository: nodejs/node
           path: node
-      - uses: actions/setup-python@v6
+          persist-credentials: false
+      - uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
         with:
           python-version: ${{ matrix.python-version }}
           allow-prereleases: true
diff --git a/gyp/.github/workflows/python_tests.yml b/gyp/.github/workflows/python_tests.yml
index 47f6e5e77c..0b335e5ca1 100644
--- a/gyp/.github/workflows/python_tests.yml
+++ b/gyp/.github/workflows/python_tests.yml
@@ -10,11 +10,13 @@ jobs:
   Python_lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803 # v6.1.0
+        with:
+          persist-credentials: false
       - name: Lint with ruff  # See pyproject.toml for settings
-        uses: astral-sh/ruff-action@v3
+        uses: astral-sh/ruff-action@4919ec5cf1f49eff0871dbcea0da843445b837e6 # v3.6.1
       - run: ruff format --check --diff
-      - uses: wagoid/commitlint-github-action@v6
+      - uses: wagoid/commitlint-github-action@b948419dd99f3fd78a6548d48f94e3df7f6bf3ed # v6.2.1
 
   Python_tests:
     runs-on: ${{ matrix.os }}
@@ -31,13 +33,15 @@ jobs:
           - os: windows-11-arm  # Windows on ARM
             python-version: 3.x
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803 # v6.1.0
+        with:
+          persist-credentials: false
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v6
+        uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
         with:
           python-version: ${{ matrix.python-version }}
           allow-prereleases: true
-      - uses: seanmiddleditch/gha-setup-ninja@v6
+      - uses: seanmiddleditch/gha-setup-ninja@3b1f8f94a2f8254bd26914c4ab9474d4f0015f67 # v6
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
diff --git a/gyp/.github/workflows/release-please.yml b/gyp/.github/workflows/release-please.yml
index 0022a3d894..5182bee742 100644
--- a/gyp/.github/workflows/release-please.yml
+++ b/gyp/.github/workflows/release-please.yml
@@ -14,7 +14,7 @@ jobs:
       contents: write
       pull-requests: write
     steps:
-      - uses: google-github-actions/release-please-action@v4
+      - uses: google-github-actions/release-please-action@e4dc86ba9405554aeba3c6bb2d169500e7d3b4ee # v4.1.1
         id: release
 
   build:
@@ -24,11 +24,13 @@ jobs:
     if: ${{ needs.release-please.outputs.release_created }}  # only publish on release
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@d23441a48e516b6c34aea4fa41551a30e30af803 # v6.1.0
+      with:
+        persist-credentials: false
     - name: Build a binary wheel and a source tarball
       run: pipx run build
     - name: Store the distribution packages
-      uses: actions/upload-artifact@v7
+      uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
       with:
         name: python-package-distributions
         path: dist/
@@ -48,12 +50,12 @@ jobs:
       id-token: write # IMPORTANT: mandatory for trusted publishing
     steps:
     - name: Download all the dists
-      uses: actions/download-artifact@v8
+      uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
       with:
         name: python-package-distributions
         path: dist/
     - name: Publish distribution to PyPI
-      uses: pypa/gh-action-pypi-publish@release/v1
+      uses: pypa/gh-action-pypi-publish@dc37677b2e1c63e2034f94d8a5b11f265b73ba33 # v1.14.2
 
   github-release:
     name: >-
@@ -68,12 +70,12 @@ jobs:
       id-token: write # IMPORTANT: mandatory for sigstore
     steps:
     - name: Download all the dists
-      uses: actions/download-artifact@v8
+      uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
       with:
         name: python-package-distributions
         path: dist/
     - name: Sign the dists with Sigstore
-      uses: sigstore/gh-action-sigstore-python@v3.3.0
+      uses: sigstore/gh-action-sigstore-python@04cffa1d795717b140764e8b640de88853c92acc # v3.3.0
       with:
         inputs: >-
           ./dist/*.tar.gz
@@ -81,10 +83,11 @@ jobs:
     - name: Upload artifact signatures to GitHub Release
       env:
         GITHUB_TOKEN: ${{ github.token }}
+        TAG_NAME: ${{ needs.release-please.outputs.tag_name }}
       # Upload to GitHub Release using the `gh` CLI.
       # `dist/` contains the built packages, and the
       # sigstore-produced signatures and certificates.
       run: >-
         gh release upload
-        ${{ needs.release-please.outputs.tag_name }} dist/**
+        ${TAG_NAME} dist/**
         --repo '${{ github.repository }}'
diff --git a/zizmor.yml b/zizmor.yml
new file mode 100644
index 0000000000..35618cc62f
--- /dev/null
+++ b/zizmor.yml
@@ -0,0 +1,5 @@
+rules:
+  adhoc-packages:
+    disable: true
+  excessive-permissions:
+    disable: true