diff --git a/repo.json b/repo.json
index 9b63ec347..55f810947 100644
--- a/repo.json
+++ b/repo.json
@@ -1,4 +1,5 @@
 {
+  "index_v2": "https://raw.githubusercontent.com/keiyoushi/extensions/repo/index.pb",
   "meta": {
     "name": "Keiyoushi",
     "website": "https://keiyoushi.github.io",