diff --git a/.github/workflows/trivy.yml b/.github/workflows/trivy.yml
new file mode 100644
index 000000000..a7e214811
--- /dev/null
+++ b/.github/workflows/trivy.yml
@@ -0,0 +1,25 @@
+name: Trivy
+
+on:
+  schedule:
+    # Schedule execution daily at 7:23 am (UTC).
+    - cron: "23 07 * * *"
+
+jobs:
+  trivy-scan:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Scan vulnerabilities with Trivy
+        uses: aquasecurity/trivy-action@0.29.0
+        with:
+          scan-type: 'repo'
+          scanners: 'vuln'
+          ignore-unfixed: true
+          format: 'sarif'
+          output: 'trivy-results.sarif'
+          severity: 'CRITICAL,HIGH,MEDIUM,LOW'
+      - name: Upload Trivy scan results to GitHub Security tab
+        uses: github/codeql-action/upload-sarif@v3
+        with:
+          sarif_file: 'trivy-results.sarif'
diff --git a/README.md b/README.md
index 527205e9f..f111fd54b 100644
--- a/README.md
+++ b/README.md
@@ -280,3 +280,12 @@ and push the tag to remote repository
 ```sh
 git push origin AKR-ga-1234
 ```
+
+## Security
+
+### Vulnerabilities
+
+Vulnerabilities in dependencies used by the applications are scanned daily with [Trivy](https://trivy.dev/latest/ecosystem/cicd/#trivy-action-official). 
+The scan is performed only against the default branch of the repository.
+
+Results of the scan are uploaded to the GitHub Security tab and are found under the section [Code scanning](https://github.com/Opetushallitus/kieli-ja-kaantajatutkinnot/security/code-scanning). The results are only available to GitHub users belonging to the Opetushallitus organization.