diff --git a/administrator/components/com_admin/sql/updates/mysql/4.1.0-2021-11-28.sql b/administrator/components/com_admin/sql/updates/mysql/4.1.0-2021-11-28.sql
index 695c752e1ce65..7d1ad8ab702df 100644
--- a/administrator/components/com_admin/sql/updates/mysql/4.1.0-2021-11-28.sql
+++ b/administrator/components/com_admin/sql/updates/mysql/4.1.0-2021-11-28.sql
@@ -2,3 +2,8 @@
 -- Convert core templates to new mode
 --
 UPDATE `#__template_styles` SET `inheritable` = 1 WHERE `template` = 'atum' AND `client_id` = 1 OR `template` = 'cassiopeia' AND `client_id` = 0;
+
+UPDATE `#__template_styles`
+   SET `params` = REPLACE(`params`,'"useFontScheme":"templates\\/cassiopeia\\/css\\/','"useFontScheme":"media\\/templates\\/site\\/cassiopeia\\/css\\/')
+ WHERE `template` = 'cassiopeia'
+   AND `client_id` = 0;
diff --git a/administrator/components/com_admin/sql/updates/postgresql/4.1.0-2021-11-28.sql b/administrator/components/com_admin/sql/updates/postgresql/4.1.0-2021-11-28.sql
index b97caee9aa21c..8deaab6c84517 100644
--- a/administrator/components/com_admin/sql/updates/postgresql/4.1.0-2021-11-28.sql
+++ b/administrator/components/com_admin/sql/updates/postgresql/4.1.0-2021-11-28.sql
@@ -2,3 +2,8 @@
 -- Convert core templates to new mode
 --
 UPDATE "#__template_styles" SET "inheritable" = 1 WHERE "template" = 'atum' AND "client_id" = 1 OR "template" = 'cassiopeia' AND "client_id" = 0;
+
+UPDATE "#__template_styles"
+   SET "params" = REPLACE("params",'"useFontScheme":"templates\\/cassiopeia\\/css\\/','"useFontScheme":"media\\/templates\\/site\\/cassiopeia\\/css\\/')
+ WHERE "template" = 'cassiopeia'
+   AND "client_id" = 0;