diff --git a/spec/web/site/_data/contact.yml b/spec/web/site/_data/contact.yml
index b3a8c96c..3ca78a76 100644
--- a/spec/web/site/_data/contact.yml
+++ b/spec/web/site/_data/contact.yml
@@ -6,7 +6,7 @@
 
 - type: mastodon
   icon: "fab fa-mastodon"
-  url:  ""
+  url:  "https://cathode.church/@koishi"
 
 #- type: github
 #  icon: "fab fa-github"