diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..06a38ef
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,15 @@
+# https://docs.github.com/en/code-security/reference/supply-chain-security/dependabot-options-reference
+
+version: 2
+updates:
+    # GitHub Actions
+    - package-ecosystem: 'github-actions'
+      directory: '/'
+      schedule:
+          interval: 'weekly'
+      groups:
+          github-actions:
+              patterns:
+                  - '*'
+      cooldown:
+          default-days: 7
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 48e0537..42b43b3 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -8,7 +8,8 @@ on:
 
 jobs:
   tests:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-latest
+    permissions: {}
 
     strategy:
       fail-fast: false
@@ -39,11 +40,13 @@ jobs:
       SYMFONY_REQUIRE: ${{ matrix.symfony-version || '>=5.4' }}
 
     steps:
-      - name: "Checkout code"
-        uses: "actions/checkout@v2"
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
+        with:
+          persist-credentials: false
 
-      - name: "Install PHP"
-        uses: "shivammathur/setup-php@v2"
+      - name: Setup PHP
+        uses: shivammathur/setup-php@083d5237d9340d541bf95e2a6eceaf3529b85892
         with:
             coverage: "none"
             php-version: "${{ matrix.php-version }}"
@@ -56,7 +59,7 @@ jobs:
         run: composer config minimum-stability ${{ matrix.minimum-stability || 'stable' }} --ansi
 
       - name: "Composer install"
-        uses: "ramsey/composer-install@v2"
+        uses: ramsey/composer-install@26d8a556604053a9612623447203a691f406fbe6
         with:
             dependency-versions: "${{ matrix.dependency-version }}"
             composer-options: "--prefer-dist --no-progress"
diff --git a/.github/workflows/fabbot.yml b/.github/workflows/fabbot.yml
index 340959e..4debcc8 100644
--- a/.github/workflows/fabbot.yml
+++ b/.github/workflows/fabbot.yml
@@ -9,7 +9,7 @@ permissions:
 jobs:
   call-fabbot:
     name: Fabbot
-    uses: symfony-tools/fabbot/.github/workflows/fabbot.yml@main
+    uses: symfony-tools/fabbot/.github/workflows/fabbot.yml@main # zizmor: ignore[unpinned-uses]
     with:
       package: WebpackEncoreBundle
       check_license: true
diff --git a/.github/workflows/static.yml b/.github/workflows/static.yml
index d90105b..54cdcd1 100644
--- a/.github/workflows/static.yml
+++ b/.github/workflows/static.yml
@@ -4,24 +4,27 @@ name: Static analysis
 jobs:
   phpstan:
     name: PHPStan
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-latest
+    permissions: {}
 
     steps:
-      - name: Checkout code
-        uses: actions/checkout@v2
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
+        with:
+          persist-credentials: false
 
       - name: Setup PHP
-        uses: shivammathur/setup-php@v2
+        uses: shivammathur/setup-php@083d5237d9340d541bf95e2a6eceaf3529b85892
         with:
           php-version: 8.1
           coverage: none
           tools: cs2pr
 
       - name: Download dependencies
-        uses: ramsey/composer-install@v1
+        uses: ramsey/composer-install@26d8a556604053a9612623447203a691f406fbe6
 
       - name: Install PHPStan
-        uses: ramsey/composer-install@v1
+        uses: ramsey/composer-install@26d8a556604053a9612623447203a691f406fbe6
         with:
           composer-options: "--working-dir=tools/phpstan"
 
@@ -30,23 +33,27 @@ jobs:
 
   psalm:
     name: Psalm
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-latest
+    permissions: {}
+
     steps:
-      - name: Checkout code
-        uses: actions/checkout@v2
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
+        with:
+          persist-credentials: false
 
       - name: Setup PHP
-        uses: shivammathur/setup-php@v2
+        uses: shivammathur/setup-php@083d5237d9340d541bf95e2a6eceaf3529b85892
         with:
           php-version: 8.1
           coverage: none
           tools: vimeo/psalm:4.11.2
 
       - name: Download dependencies
-        uses: ramsey/composer-install@v1
+        uses: ramsey/composer-install@26d8a556604053a9612623447203a691f406fbe6
 
       - name: Install psalm
-        uses: ramsey/composer-install@v1
+        uses: ramsey/composer-install@26d8a556604053a9612623447203a691f406fbe6
         with:
           composer-options: "--working-dir=tools/psalm"
 
@@ -55,18 +62,21 @@ jobs:
 
   composer-normalize:
     name: Composer Normalize
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-latest
+    permissions: {}
 
     steps:
       - name: Setup PHP
-        uses: shivammathur/setup-php@v2
+        uses: shivammathur/setup-php@083d5237d9340d541bf95e2a6eceaf3529b85892
         with:
           php-version: 8.1
           coverage: none
           tools: composer-normalize
 
-      - name: Checkout code
-        uses: actions/checkout@v2
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
+        with:
+          persist-credentials: false
 
       - name: Normalize
         run: composer-normalize --dry-run
diff --git a/.github/workflows/zizmor.yaml b/.github/workflows/zizmor.yaml
new file mode 100644
index 0000000..b554a2a
--- /dev/null
+++ b/.github/workflows/zizmor.yaml
@@ -0,0 +1,26 @@
+name: GitHub Actions Security Analysis with zizmor 🌈
+
+on:
+    push:
+        branches: ['main']
+    pull_request:
+        branches: ['**']
+
+permissions: {}
+
+jobs:
+    zizmor:
+        name: Run zizmor 🌈
+        runs-on: ubuntu-latest
+        permissions:
+            security-events: write # Required for upload-sarif (used by zizmor-action) to upload SARIF files.
+            contents: read # Only needed for private repos. Needed to clone the repo.
+            actions: read # Only needed for private repos. Needed for upload-sarif to read workflow run info.
+        steps:
+            - name: Checkout
+              uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
+              with:
+                  persist-credentials: false
+
+            - name: Run zizmor 🌈
+              uses: zizmorcore/zizmor-action@5f14fd08f7cf1cb1609c1e344975f152c7ee938d # v0.5.6