diff --git a/.github/workflows/codeql.yaml b/.github/workflows/codeql.yaml
new file mode 100644
index 0000000..336c645
--- /dev/null
+++ b/.github/workflows/codeql.yaml
@@ -0,0 +1,42 @@
+name: CodeQL
+
+on:
+  pull_request:
+    branches:
+      - dev
+      - main
+  push:
+    branches:
+      - dev
+      - main
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      security-events: write
+      actions: read
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: ['python', 'javascript', 'actions']
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@1a818fd5f97ed0ee9a823421bd5b171add01227f # v4.36.2
+        with:
+          languages: ${{ matrix.language }}
+
+      - name: Autobuild
+        uses: github/codeql-action/autobuild@1a818fd5f97ed0ee9a823421bd5b171add01227f # v4.36.2
+
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@1a818fd5f97ed0ee9a823421bd5b171add01227f # v4.36.2
+        with:
+          category: "/language:${{ matrix.language }}"
diff --git a/.github/workflows/validate-release.yaml b/.github/workflows/validate-release.yaml
index ec030ae..30bc372 100644
--- a/.github/workflows/validate-release.yaml
+++ b/.github/workflows/validate-release.yaml
@@ -9,6 +9,8 @@ jobs:
   validate:
     name: Validate version and changelog
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
     steps:
       - name: Checkout PR branch
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
diff --git a/config/urls.py b/config/urls.py
index 24ccf49..86053fd 100644
--- a/config/urls.py
+++ b/config/urls.py
@@ -33,8 +33,8 @@ def healthz(request):
     try:
         connection.ensure_connection()
         return JsonResponse({"status": "ok"})
-    except Exception as e:
-        return JsonResponse({"status": "error", "detail": str(e)}, status=503)
+    except Exception:
+        return JsonResponse({"status": "error"}, status=503)
 
 urlpatterns = [
     path("healthz/", healthz, name="healthz"),