diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index d1f40e5..5043f4e 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -9,6 +9,8 @@ updates:
       actions:
         patterns:
           - "*"
+    cooldown:
+      default-days: 7
 
   # Maintain dependencies for pip constraints-ci.txt
   - package-ecosystem: "pip"
@@ -18,3 +20,5 @@ updates:
     allow:
       - dependency-name: "cmake"
       - dependency-name: "ninja"
+    cooldown:
+      default-days: 7
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 5e02744..8a5a9ab 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -20,16 +20,20 @@ concurrency:
 env:
   SETUPTOOLS_SCM_PRETEND_VERSION: ${{ github.event.inputs.overrideVersion }}
 
+permissions: {}
+
 jobs:
   lint:
     name: Lint
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v7
-      - uses: actions/setup-python@v6
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        with:
+          persist-credentials: false
+      - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
           python-version: "3.x"
-      - uses: pre-commit/action@v3.0.1
+      - uses: pre-commit/action@2c7b3805fd2a0fd8c1884dcaebf91fc102a13ecd # v3.0.1
 
 
   build_wheels:
@@ -76,26 +80,27 @@ jobs:
             arch: "universal2"
 
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
         with:
           fetch-depth: 0  # required for setuptools_scm to find tags
           submodules: 'recursive'
+          persist-credentials: false
 
       - name: Set up QEMU
-        uses: docker/setup-qemu-action@v4.1.0
+        uses: docker/setup-qemu-action@06116385d9baf250c9f4dcb4858b16962ea869c3 # v4.1.0
         if: runner.os == 'Linux' && runner.arch == 'X64'
 
-      - uses: astral-sh/setup-uv@v8.2.0
+      - uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0
         with:
           enable-cache: false
 
       - name: Build wheels
-        uses: pypa/cibuildwheel@v4.1
+        uses: pypa/cibuildwheel@294735312765b09d24a2fbec22660ce817587d55 # v4.1.0
         env:
           CIBW_ARCHS: "${{ matrix.arch }}"
           CIBW_BUILD: "cp39-${{ matrix.build }}*"
 
-      - uses: actions/upload-artifact@v7
+      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
         with:
           name: cibw-wheels-${{ matrix.os }}-${{ matrix.build }}${{ matrix.arch }}
           path: ./wheelhouse/*.whl
@@ -113,15 +118,16 @@ jobs:
     needs: [lint]
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
         with:
           fetch-depth: 0  # required for setuptools_scm to find tags
           submodules: 'recursive'
+          persist-credentials: false
 
       - name: Build SDist
         run: pipx run build --sdist
 
-      - uses: actions/upload-artifact@v7
+      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
         with:
           name: cibw-sdist
           path: dist/*.tar.gz
@@ -136,24 +142,28 @@ jobs:
         python: ["3.8", "3.13"]
 
     steps:
-      - uses: actions/checkout@v7
-      - uses: actions/setup-python@v6
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        with:
+          persist-credentials: false
+      - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         name: Install Python ${{ matrix.python }}
         id: python
         with:
           python-version: ${{ matrix.python }}
           update-environment: false
 
-      - uses: astral-sh/setup-uv@v8.2.0
+      - uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0
         with:
           enable-cache: false
 
       - name: Setup environment
         run: |
-          uv venv --python "${{ steps.python.outputs.python-path }}"
+          uv venv --python "${STEPS_PYTHON_OUTPUTS_PYTHON_PATH}"
           uv pip install pip --group test
+        env:
+          STEPS_PYTHON_OUTPUTS_PYTHON_PATH: ${{ steps.python.outputs.python-path }}
 
-      - uses: actions/download-artifact@v8
+      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
         with:
           name: cibw-sdist
           path: sdist
@@ -185,7 +195,7 @@ jobs:
     needs: [build_wheels, build_sdist, test_sdist]
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/download-artifact@v8
+      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
         with:
           pattern: cibw-*
           path: dist
@@ -203,12 +213,15 @@ jobs:
       url: https://pypi.org/p/ninja
     permissions:
       id-token: write
+      attestations: write
     steps:
-      - uses: actions/download-artifact@v8
+      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
         with:
           pattern: cibw-*
           path: dist
           merge-multiple: true
 
       - name: Upload to PyPI
-        uses: pypa/gh-action-pypi-publish@release/v1
+        uses: pypa/gh-action-pypi-publish@cef221092ed1bacb1cc03d23a2d87d1d172e277b # v1.14.0
+        with:
+          attestations: true
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 17e8198..aea0fbe 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,6 +1,6 @@
 repos:
 - repo: https://github.com/pre-commit/pre-commit-hooks
-  rev: v6.0.0
+  rev: 3e8a8703264a2f4a69428a0aa4dcb512790b2c8c  # frozen: v6.0.0
   hooks:
   - id: check-added-large-files
   - id: check-case-conflict
@@ -13,27 +13,33 @@ repos:
   - id: trailing-whitespace
 
 - repo: https://github.com/astral-sh/ruff-pre-commit
-  rev: "v0.15.17"
+  rev: "77039ccbba72c8aede339c5f8ae29b42aced0a2e"  # frozen: v0.15.18
   hooks:
   - id: ruff
     args: [--fix, --show-fixes]
 
 - repo: https://github.com/pre-commit/mirrors-mypy
-  rev: "v2.1.0"
+  rev: "d2823d321df3af8f878f7ee3414dc94d037145b9"  # frozen: v2.1.0
   hooks:
     - id: mypy
       files: src
       args: []
 
 - repo: https://github.com/abravalheri/validate-pyproject
-  rev: "v0.25"
+  rev: "4b2e70d08cb2ccd26d1fba73588de41c7a5d50b7"  # frozen: v0.25
   hooks:
     - id: validate-pyproject
       additional_dependencies: ["validate-pyproject-schema-store[all]>=2024.10.21"]
 
 - repo: https://github.com/python-jsonschema/check-jsonschema
-  rev: "0.37.3"
+  rev: "8ef330cbb7204d388aa7a620f9549bcea8009663"  # frozen: 0.37.3
   hooks:
     - id: check-dependabot
     - id: check-github-workflows
     - id: check-readthedocs
+
+- repo: https://github.com/zizmorcore/zizmor-pre-commit
+  rev: e3eebf65325ccc992422292cb7a4baee967cf815  # frozen: v1.26.1
+  hooks:
+  - id: zizmor
+    files: "^\\.github"