diff --git a/.github/workflows/validate-renovate.yml b/.github/workflows/validate-renovate.yml
new file mode 100644
index 0000000..05aad08
--- /dev/null
+++ b/.github/workflows/validate-renovate.yml
@@ -0,0 +1,23 @@
+name: validate / renovate.json
+
+on:
+  pull_request:
+    paths:
+      - "renovate.json"
+      - ".github/workflows/validate-renovate.yml"
+  merge_group:
+
+jobs:
+  validate-renovate:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4.1.1
+      - uses: actions/setup-node@v4.0.1
+
+      - name: install
+        run: |
+          npm install -g renovate
+      - name: validate
+        run: |
+          renovate-config-validator