diff --git a/layouts/robots.txt b/layouts/robots.txt
index 6a6256f37..47ec60c55 100644
--- a/layouts/robots.txt
+++ b/layouts/robots.txt
@@ -3,4 +3,5 @@ User-agent: *
 {{ if .Params.disallow }}
 Disallow: {{ .RelPermalink }}
 {{ end }}
-{{ end }}
\ No newline at end of file
+{{ end }}
+Disallow: /zh/docs/v4.1/
\ No newline at end of file