diff --git a/.github/dependabot.yml b/.github/dependabot.yml
deleted file mode 100644
index 28994f1..0000000
--- a/.github/dependabot.yml
+++ /dev/null
@@ -1,15 +0,0 @@
-version: 2
-
-updates:
-  - package-ecosystem: "gomod"
-    directory: "/"
-    schedule:
-      interval: weekly
-      time: "01:00"
-      timezone: Asia/Tokyo
-  - package-ecosystem: "github-actions"
-    directory: "/"
-    schedule:
-      interval: weekly
-      time: "01:00"
-      timezone: Asia/Tokyo
diff --git a/.github/workflows/validate_renovate_config.yml b/.github/workflows/validate_renovate_config.yml
new file mode 100644
index 0000000..1fa7dd9
--- /dev/null
+++ b/.github/workflows/validate_renovate_config.yml
@@ -0,0 +1,19 @@
+name: validate Renovate config
+
+on:
+  pull_request:
+    paths:
+      - renovate.json
+      - .github/workflows/validate_renovate_config.yml
+
+jobs:
+  validate:
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    permissions:
+      contents: read
+
+    steps:
+      - uses: suzuki-shunsuke/renovate-config-validator-action@51b62d3bf0c86d4de68c580a057c1e16f0702d07 # v0.0.1
+        with:
+          node-version: 22.13.1
diff --git a/renovate.json b/renovate.json
new file mode 100644
index 0000000..5da22c3
--- /dev/null
+++ b/renovate.json
@@ -0,0 +1,6 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": [
+    "local>tailor-inc/renovate-config"
+  ]
+}