diff --git a/domains/caodoc.json b/domains/caodoc.json
index 8682070a5..b9765fa0b 100644
--- a/domains/caodoc.json
+++ b/domains/caodoc.json
@@ -1,7 +1,7 @@
 {
     "owner": {
         "username": "caodoc",
-        "email": "dochicao2306@gmail.com"
+        "email": "caodoc@proton.me"
     },
     "record": {
         "CNAME": "caodoc.github.io"