diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..387b5be
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,27 @@
+version: 2
+updates:
+  - package-ecosystem: "gomod"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    cooldown:
+      default-days: 7
+    groups:
+      go-dependencies:
+        patterns: ["*"]
+        update-types: ["minor", "patch"]
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    cooldown:
+      default-days: 7
+    groups:
+      github-actions:
+        patterns: ["*"]
+  - package-ecosystem: "docker"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    cooldown:
+      default-days: 7
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index 1cadc8d..2bf08cf 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -3,26 +3,36 @@ on:
   push:
     tags:
       - v*
+permissions: {}
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: false
 jobs:
   goreleaser:
+    name: GoReleaser
     runs-on: ubuntu-latest
+    permissions:
+      contents: write # create the GitHub release and upload assets
+      packages: write # push images to ghcr.io
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
         with:
           fetch-depth: 0
+          persist-credentials: false
       - name: Set up Go
-        uses: actions/setup-go@v6
+        uses: actions/setup-go@924ae3a1cded613372ab5595356fb5720e22ba16 # v6.5.0
         with:
           go-version: '1.26'
+          cache: false # release artifacts must not be built from a restorable cache
       - name: Login to GitHub Container Registry
-        uses: docker/login-action@v4
+        uses: docker/login-action@af1e73f918a031802d376d3c8bbc3fe56130a9b0 # v4.4.0
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
       - name: Run GoReleaser
-        uses: goreleaser/goreleaser-action@v7
+        uses: goreleaser/goreleaser-action@f06c13b6b1a9625abc9e6e439d9c05a8f2190e94 # v7.2.3
         with:
           version: '~> v2'
           args: release --clean
diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index d72573a..91a6621 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -3,14 +3,23 @@ on:
   push:
     branches: [master]
   pull_request:
+permissions: {}
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
 jobs:
   test:
+    name: Test
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        with:
+          persist-credentials: false
       - name: Set up Go
-        uses: actions/setup-go@v6
+        uses: actions/setup-go@924ae3a1cded613372ab5595356fb5720e22ba16 # v6.5.0
         with:
           go-version: '1.26'
       - name: Verify go.mod is tidy
diff --git a/.github/workflows/zizmor.yaml b/.github/workflows/zizmor.yaml
new file mode 100644
index 0000000..491a15e
--- /dev/null
+++ b/.github/workflows/zizmor.yaml
@@ -0,0 +1,25 @@
+name: zizmor
+on:
+  push:
+    branches: [master]
+  pull_request:
+permissions: {}
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+jobs:
+  zizmor:
+    name: Run zizmor
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+    steps:
+      - name: Checkout
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        with:
+          persist-credentials: false
+      - name: Run zizmor
+        uses: zizmorcore/zizmor-action@192e21d79ab29983730a13d1382995c2307fbcaa # v0.5.7
+        with:
+          persona: pedantic
+          advanced-security: false