diff --git a/.github/dependabot.yaml b/.github/dependabot.yaml
index 1230149..3419030 100644
--- a/.github/dependabot.yaml
+++ b/.github/dependabot.yaml
@@ -4,3 +4,7 @@ updates:
     directory: "/"
     schedule:
       interval: "daily"
+    # Wait a week before proposing a newly-published version, mirroring the uv
+    # `exclude-newer` policy. Reduces exposure to compromised fresh releases.
+    cooldown:
+      default-days: 7
diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index b692c07..aa56808 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -6,13 +6,19 @@ on:
     branches:
       - main
 
+permissions: {}
+
 jobs:
   validate:
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
 
-      - uses: actions/setup-python@v7
+      - uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
         with:
           python-version: "3.11"
 
@@ -21,7 +27,7 @@ jobs:
 
       - name: Load cached Pre-Commit Dependencies
         id: cached-pre-commit-dependencies
-        uses: actions/cache@v6
+        uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
         with:
           path: ~/.cache/pre-commit/
           key: pre-commit-|${{ env.pythonLocation }}|${{ hashFiles('.pre-commit-config.yaml') }}
@@ -33,6 +39,8 @@ jobs:
         run: pre-commit run --show-diff-on-failure --color=always --all-files
 
   test:
+    permissions:
+      contents: read
     strategy:
       fail-fast: true
       matrix:
@@ -43,6 +51,8 @@ jobs:
       coverage: ${{ matrix.python-version == '3.11' }}
 
   test-platform-compat:
+    permissions:
+      contents: read
     if: github.event_name == 'push'
     strategy:
       fail-fast: true
@@ -57,22 +67,27 @@ jobs:
     needs:
       - test
       - validate
+    permissions:
+      contents: read
     if: github.event.pull_request.head.repo.fork == false && github.repository_owner == 'litestar-org'
     runs-on: ubuntu-latest
     steps:
       - name: Check out repository
-        uses: actions/checkout@v7
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
       - name: Download Artifacts
-        uses: actions/download-artifact@v8
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
         with:
           name: coverage-xml
       - name: Fix coverage file for sonarcloud
         run: sed -i "s/home\/runner\/work\/litestar\/litestar/github\/workspace/g" coverage.xml
-      - name: SonarCloud Scan
-        uses: sonarsource/sonarcloud-github-action@master
+      - name: SonarQube Cloud Scan
+        uses: SonarSource/sonarqube-scan-action@fd88b7d7ccbaefd23d8f36f73b59db7a3d246602 # v6
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
+          SONAR_HOST_URL: https://sonarcloud.io
 
   codeql:
     needs:
@@ -80,14 +95,17 @@ jobs:
       - validate
     runs-on: ubuntu-latest
     permissions:
+      contents: read
       security-events: write
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v7
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
       - name: Initialize CodeQL Without Dependencies
-        uses: github/codeql-action/init@v4
+        uses: github/codeql-action/init@e4fba868fa4b1b91e1fdab776edc8cfbe6e9fb81 # v4.37.3
         with:
           setup-python-dependencies: false
           languages: python
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@v4
+        uses: github/codeql-action/analyze@e4fba868fa4b1b91e1fdab776edc8cfbe6e9fb81 # v4.37.3
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 0676c8b..f9f3bfb 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -4,19 +4,23 @@ on:
   schedule:
     - cron: "0 4 * * *"
 
+permissions: {}
+
 jobs:
   codeql:
     runs-on: ubuntu-latest
     permissions:
+      contents: read
       security-events: write
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v7
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           ref: "main"
+          persist-credentials: false
 
       - name: Initialize CodeQL With Dependencies
-        uses: github/codeql-action/init@v4
+        uses: github/codeql-action/init@e4fba868fa4b1b91e1fdab776edc8cfbe6e9fb81 # v4.37.3
 
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@v4
+        uses: github/codeql-action/analyze@e4fba868fa4b1b91e1fdab776edc8cfbe6e9fb81 # v4.37.3
diff --git a/.github/workflows/docs.yaml b/.github/workflows/docs.yaml
index a70afa7..fcefc0e 100644
--- a/.github/workflows/docs.yaml
+++ b/.github/workflows/docs.yaml
@@ -4,19 +4,23 @@ on:
   release:
     types: [published]
 
+permissions: {}
+
 jobs:
   docs:
     permissions:
       contents: write
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
 
       - name: Set up uv
-        uses: astral-sh/setup-uv@v9.0.0
+        uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
         with:
           python-version: "3.11"
-          enable-cache: true
+          enable-cache: false
 
       - name: Install dependencies
         run: uv sync --all-groups
@@ -28,6 +32,6 @@ jobs:
         run: uv run python tools/build_docs.py docs-build
 
       - name: Deploy
-        uses: JamesIves/github-pages-deploy-action@v4
+        uses: JamesIves/github-pages-deploy-action@d92aa235d04922e8f08b40ce78cc5442fcfbfa2f # v4
         with:
           folder: docs-build
diff --git a/.github/workflows/publish.yaml b/.github/workflows/publish.yaml
index 6b3c486..fcb262d 100644
--- a/.github/workflows/publish.yaml
+++ b/.github/workflows/publish.yaml
@@ -4,23 +4,28 @@ on:
   release:
     types: [published]
 
+permissions: {}
+
 jobs:
   publish-release:
     runs-on: ubuntu-latest
     permissions:
+      contents: read
       id-token: write
     steps:
       - name: Check out repository
-        uses: actions/checkout@v7
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
 
       - name: Set up uv
-        uses: astral-sh/setup-uv@v9.0.0
+        uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
         with:
           python-version: "3.11"
-          enable-cache: true
+          enable-cache: false
 
       - name: Build package distributions
         run: uv build
 
       - name: Publish package distributions to PyPI
-        uses: pypa/gh-action-pypi-publish@release/v1
+        uses: pypa/gh-action-pypi-publish@ba38be9e461d3875417946c167d0b5f3d385a247 # release/v1
diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 91e6dcb..e07b119 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -15,19 +15,25 @@ on:
         type: string
         default: "ubuntu-latest"
 
+permissions: {}
+
 jobs:
   test:
     runs-on: ${{ inputs.os }}
     timeout-minutes: 10
+    permissions:
+      contents: read
     defaults:
       run:
         shell: bash
     steps:
       - name: Check out repository
-        uses: actions/checkout@v7
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
 
       - name: Set up uv
-        uses: astral-sh/setup-uv@v9.0.0
+        uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
         with:
           python-version: ${{ inputs.python-version }}
           enable-cache: true
@@ -43,7 +49,7 @@ jobs:
         if: inputs.coverage
         run: uv run pytest docs/examples tests --cov=project_template --cov-report=xml
 
-      - uses: actions/upload-artifact@v7
+      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
         if: inputs.coverage
         with:
           name: coverage-xml
diff --git a/.github/workflows/zizmor.yml b/.github/workflows/zizmor.yml
new file mode 100644
index 0000000..c54d5b3
--- /dev/null
+++ b/.github/workflows/zizmor.yml
@@ -0,0 +1,25 @@
+name: GitHub Actions Security Analysis
+
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+    branches: ["**"]
+
+permissions: {}
+
+jobs:
+  zizmor:
+    runs-on: ubuntu-latest
+    permissions:
+      security-events: write # upload SARIF results to the Security tab
+      contents: read # only needed for private or internal repos
+      actions: read # only needed for private or internal repos
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
+        with:
+          persist-credentials: false
+
+      - name: Run zizmor 🌈
+        uses: zizmorcore/zizmor-action@6599ee8b7a49aef6a770f63d261d214911a7ce02 # v0.6.0
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 1a1fa0b..b1b384d 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -20,6 +20,10 @@ repos:
     rev: 0.11.31
     hooks:
       - id: uv-lock
+  - repo: https://github.com/zizmorcore/zizmor-pre-commit
+    rev: v1.28.0
+    hooks:
+      - id: zizmor
   - repo: https://github.com/charliermarsh/ruff-pre-commit
     rev: "v0.0.290"
     hooks: