diff --git a/domains/_github-pages-challenge-tianyz404.tiyz.json b/domains/_github-pages-challenge-tianyz404.tiyz.json
index 7a0405262f..641219e7ee 100644
--- a/domains/_github-pages-challenge-tianyz404.tiyz.json
+++ b/domains/_github-pages-challenge-tianyz404.tiyz.json
@@ -1,6 +1,6 @@
 {
     "owner": {
-        "username": "TianYZ404",
+        "username": "tianyz404",
         "email": "im.tianyz404@gmail.com"
     },
     "records": {