diff --git a/script/sponsors/sponsors.go b/script/sponsors/sponsors.go
index 8691c70..533fdf1 100644
--- a/script/sponsors/sponsors.go
+++ b/script/sponsors/sponsors.go
@@ -14,7 +14,7 @@ import (
 )
 
 const sponsorsOutput = `{{range .}}
-<a href="{{.LinkURL}}">
+<a href="{{.LinkURL}}" rel="nofollow sponsored">
 	<img src="{{.AvatarURL}}" class="img github-avatar" alt="{{.Name}}">
 </a>
 {{end}}`