diff --git a/blocklists/_unified_tier2_blocklist.csv b/blocklists/_unified_tier2_blocklist.csv
index e40be89..8b986db 100644
--- a/blocklists/_unified_tier2_blocklist.csv
+++ b/blocklists/_unified_tier2_blocklist.csv
@@ -645,6 +645,7 @@ sealion.club,suspend,False,False,,False
 search.fedi.app,suspend,False,False,,False
 seikora.one,silence,False,False,,False
 seo.chat,silence,False,False,,False
+seriousbusiness.international,suspend,False,False,,False
 servernerds.net,silence,False,False,,False
 shadowsocial.org,suspend,False,False,,False
 sharivegas.com,suspend,False,False,,False
diff --git a/blocklists/mastodon/_unified_tier2_blocklist.csv b/blocklists/mastodon/_unified_tier2_blocklist.csv
index d6efbd7..1f3d5c4 100644
--- a/blocklists/mastodon/_unified_tier2_blocklist.csv
+++ b/blocklists/mastodon/_unified_tier2_blocklist.csv
@@ -645,6 +645,7 @@ sealion.club,suspend,False,False,,False
 search.fedi.app,suspend,False,False,,False
 seikora.one,silence,False,False,,False
 seo.chat,silence,False,False,,False
+seriousbusiness.international,suspend,False,False,,False
 servernerds.net,silence,False,False,,False
 shadowsocial.org,suspend,False,False,,False
 sharivegas.com,suspend,False,False,,False
diff --git a/blocklists/mastodon/union.place.csv b/blocklists/mastodon/union.place.csv
index 744bdbb..b8d8c2f 100644
--- a/blocklists/mastodon/union.place.csv
+++ b/blocklists/mastodon/union.place.csv
@@ -292,6 +292,7 @@ sealion.club,suspend,False,False,,False
 secluded.site,suspend,False,False,,False
 seikora.one,suspend,False,False,,False
 seo.chat,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/union.place.csv b/blocklists/union.place.csv
index 4541351..47801b0 100644
--- a/blocklists/union.place.csv
+++ b/blocklists/union.place.csv
@@ -292,6 +292,7 @@ sealion.club,suspend,False,False,,False
 secluded.site,suspend,False,False,,False
 seikora.one,suspend,False,False,,False
 seo.chat,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