diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..c7730bf
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,27 @@
+version: 2
+updates:
+  - package-ecosystem: npm
+    directory: /frontend
+    schedule:
+      interval: weekly
+      day: monday
+    open-pull-requests-limit: 5
+    groups:
+      npm-minor-and-patch:
+        update-types:
+          - minor
+          - patch
+
+  - package-ecosystem: pip
+    directory: /
+    schedule:
+      interval: weekly
+      day: monday
+    open-pull-requests-limit: 5
+
+  - package-ecosystem: github-actions
+    directory: /
+    schedule:
+      interval: weekly
+      day: monday
+    open-pull-requests-limit: 5
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3ada000..83364dd 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,17 +21,18 @@ jobs:
     timeout-minutes: 30
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           fetch-depth: 0
+          persist-credentials: false
 
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
         with:
           python-version: "3.12"
           cache: pip
           cache-dependency-path: requirements-lock.txt
 
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
         with:
           node-version: "22"
           cache: npm
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
new file mode 100644
index 0000000..cde37bb
--- /dev/null
+++ b/.github/workflows/codeql.yml
@@ -0,0 +1,39 @@
+name: CodeQL
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+  schedule:
+    - cron: "17 4 * * 1"
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  security-events: write
+
+concurrency:
+  group: codeql-${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  analyze:
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+
+    steps:
+      - name: Check out source
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@7188fc363630916deb702c7fdcf4e481b751f97a # v4
+        with:
+          languages: javascript-typescript,python
+
+      - name: Analyze
+        uses: github/codeql-action/analyze@7188fc363630916deb702c7fdcf4e481b751f97a # v4
diff --git a/.github/workflows/dependency-review.yml b/.github/workflows/dependency-review.yml
new file mode 100644
index 0000000..b458028
--- /dev/null
+++ b/.github/workflows/dependency-review.yml
@@ -0,0 +1,21 @@
+name: Dependency review
+
+on:
+  pull_request:
+    branches:
+      - main
+
+permissions:
+  contents: read
+
+jobs:
+  review:
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+      - uses: actions/dependency-review-action@a1d282b36b6f3519aa1f3fc636f609c47dddb294 # v5.0.0
+        with:
+          fail-on-severity: high