diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7a90113b..c95a9252 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -37,9 +37,9 @@ jobs:
             test-script: test:test
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Setup Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v6
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install dependencies
@@ -55,7 +55,7 @@ jobs:
         shell: bash
       - name: Upload Codecov Results
         if: success() && matrix.upload-coverage
-        uses: codecov/codecov-action@v6
+        uses: codecov/codecov-action@57e3a136b779b570ffcdbf80b3bdc90e7fab3de2 # v6
         with:
           file: ./coverage.xml
           flags: unittests
@@ -80,9 +80,9 @@ jobs:
             py: pypy3
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Setup Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v6
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install dependencies
@@ -99,16 +99,16 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Setup Python
-        uses: actions/setup-python@v6
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
           python-version: '3.11'
       - name: Install Python dependencies
         run: |
           python -m pip install --upgrade hatch pre-commit
       - name: Setup Node
-        uses: actions/setup-node@v6
+        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
         with:
           node-version: 24
       - name: Run repository checks
@@ -121,9 +121,9 @@ jobs:
   package:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Setup Python
-        uses: actions/setup-python@v6
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
           python-version: '3.11'
       - name: Install dependencies
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 4a07d68c..8ff1e228 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -9,6 +9,9 @@ on:
   schedule:
     - cron: '0 6 * * 6'
 
+env:
+  DISABLE_MKDOCS_2_WARNING: true
+
 concurrency:
   group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.run_id }}
   cancel-in-progress: true
@@ -18,9 +21,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Download source
-        uses: actions/checkout@v6
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Install Python
-        uses: actions/setup-python@v6
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
           python-version: '3.11'
       - name: Install dependencies
@@ -36,9 +39,9 @@ jobs:
       contents: write
     steps:
       - name: Download source
-        uses: actions/checkout@v6
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Install Python
-        uses: actions/setup-python@v6
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
           python-version: '3.11'
       - name: Install dependencies
diff --git a/.github/workflows/release-drafter.yml b/.github/workflows/release-drafter.yml
index b2f10bbe..818ca6ec 100644
--- a/.github/workflows/release-drafter.yml
+++ b/.github/workflows/release-drafter.yml
@@ -17,9 +17,9 @@ jobs:
   draft-release:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Setup Python
-        uses: actions/setup-python@v6
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
           python-version: "3.11"
       - id: notes
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 4042aba5..b5daf8b5 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -9,9 +9,9 @@ jobs:
       id-token: write
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Setup Python
-        uses: actions/setup-python@v6
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
           python-version: '3.11'
       - name: Install dependencies
@@ -19,4 +19,4 @@ jobs:
       - name: Build package
         run: python -m build
       - name: Publish to PyPI
-        uses: pypa/gh-action-pypi-publish@release/v1
+        uses: pypa/gh-action-pypi-publish@6733eb7d741f0b11ec6a39b58540dab7590f9b7d # v1.14.0
diff --git a/.github/workflows/security.yml b/.github/workflows/security.yml
index 71e721c7..48de6fd6 100644
--- a/.github/workflows/security.yml
+++ b/.github/workflows/security.yml
@@ -21,13 +21,13 @@ jobs:
   pip-audit:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Setup Python
-        uses: actions/setup-python@v6
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
           python-version: '3.11'
       - name: Audit Python dependencies
-        uses: pypa/gh-action-pip-audit@v1.1.0
+        uses: pypa/gh-action-pip-audit@1220774d901786e6f652ae159f7b6bc8fea6d266 # v1.1.0
         with:
           inputs: .
           summary: true