diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index a08e426..cb311ba 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -12,8 +12,12 @@ updates:
     directory: "/"
     patterns: ["*"]
     multi-ecosystem-group: "dependencies"
+    cooldown:
+      default-days: 7
 
   - package-ecosystem: "pip"
     directory: "/"
     patterns: ["*"]
     multi-ecosystem-group: "dependencies"
+    cooldown:
+      default-days: 7
diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 70a1986..3e3c786 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -30,10 +30,12 @@ jobs:
     timeout-minutes: 30
     steps:
       - name: Clone code
-        uses: actions/checkout@v7
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
+        with:
+          persist-credentials: false
 
       - name: Set up Python
-        uses: actions/setup-python@v7
+        uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97  # v7.0.0
         with:
           python-version: '3.x'
 
@@ -54,7 +56,7 @@ jobs:
           cp results.json build/
 
       - name: Deploy the built files
-        uses: JamesIves/github-pages-deploy-action@v4
+        uses: JamesIves/github-pages-deploy-action@fa24774553152dd7873cd16ebd8d959b010c5445  # v4.9.0
         with:
           folder: build # The folder the action should deploy.
           git-config-name: github-actions[bot]
diff --git a/.github/workflows/run-tests.yml b/.github/workflows/run-tests.yml
index 1658b4a..9868129 100644
--- a/.github/workflows/run-tests.yml
+++ b/.github/workflows/run-tests.yml
@@ -13,16 +13,21 @@ concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true
 
+permissions:
+  contents: read
+
 jobs:
   tests:
     runs-on: ubuntu-latest
     timeout-minutes: 5
     steps:
       - name: Clone code
-        uses: actions/checkout@v7
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
+        with:
+          persist-credentials: false
 
       - name: Set up Python
-        uses: actions/setup-python@v7
+        uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97  # v7.0.0
         with:
           python-version: '3.10'
 
diff --git a/.github/zizmor.yml b/.github/zizmor.yml
new file mode 100644
index 0000000..96fbd9a
--- /dev/null
+++ b/.github/zizmor.yml
@@ -0,0 +1,9 @@
+rules:
+  unpinned-uses:
+    config:
+      # Allow BeeWare-provided actions to be unpinned. If an attacker is in a
+      # position to exploit those actions, they're probably able to exploit
+      # repositories directly; and it's significantly easier for our internal
+      # actions to automatically be the most recent versions.
+      policies:
+        beeware/*: ref-pin
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 7ae0222..04d4649 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -30,5 +30,10 @@ repos:
     hooks:
       - id: python-check-blanket-noqa
 
+  - repo: https://github.com/zizmorcore/zizmor-pre-commit
+    rev: v1.29.0
+    hooks:
+      - id: zizmor
+
 ci:
   autoupdate_schedule: quarterly