diff --git a/blocklists/mastodon.art.csv b/blocklists/mastodon.art.csv
index 6fe043a..4a79139 100644
--- a/blocklists/mastodon.art.csv
+++ b/blocklists/mastodon.art.csv
@@ -752,6 +752,7 @@ search.fedi.app,suspend,False,False,,False
 secretsealing.club,suspend,False,False,,False
 seo.chat,silence,False,False,,False
 seo.community,silence,False,False,,False
+seriousbusiness.international,suspend,False,False,,False
 servernerds.net,suspend,False,False,,False
 shadowsocial.org,suspend,False,False,,False
 sharivegas.com,suspend,False,False,,False
diff --git a/blocklists/mastodon/mastodon.art.csv b/blocklists/mastodon/mastodon.art.csv
index 05a7d4b..c41350d 100644
--- a/blocklists/mastodon/mastodon.art.csv
+++ b/blocklists/mastodon/mastodon.art.csv
@@ -752,6 +752,7 @@ search.fedi.app,suspend,False,False,,False
 secretsealing.club,suspend,False,False,,False
 seo.chat,silence,False,False,,False
 seo.community,silence,False,False,,False
+seriousbusiness.international,suspend,False,False,,False
 servernerds.net,suspend,False,False,,False
 shadowsocial.org,suspend,False,False,,False
 sharivegas.com,suspend,False,False,,False