diff --git a/renovate.json b/renovate.json
deleted file mode 100644
index 5db72dd..0000000
--- a/renovate.json
+++ /dev/null
@@ -1,6 +0,0 @@
-{
-  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
-  "extends": [
-    "config:recommended"
-  ]
-}
diff --git a/renovate.json5 b/renovate.json5
new file mode 100644
index 0000000..ce3f57d
--- /dev/null
+++ b/renovate.json5
@@ -0,0 +1,4 @@
+{
+    '$schema': 'https://docs.renovatebot.com/renovate-schema.json',
+    'extends': ['github>Lombiq/renovate-config:default-orchard-core-submodule.json5'],
+}