diff --git a/docs/pages/joy-ui/api/accordion-group.json b/docs/pages/joy-ui/api/accordion-group.json
index 49bd1b10184295..da61d4e5823c9d 100644
--- a/docs/pages/joy-ui/api/accordion-group.json
+++ b/docs/pages/joy-ui/api/accordion-group.json
@@ -12,7 +12,10 @@
     "component": { "type": { "name": "elementType" } },
     "disableDivider": { "type": { "name": "bool" }, "default": "false" },
     "size": {
-      "type": { "name": "enum", "description": "'sm'<br>&#124;&nbsp;'md'<br>&#124;&nbsp;'lg'" },
+      "type": {
+        "name": "union",
+        "description": "'sm'<br>&#124;&nbsp;'md'<br>&#124;&nbsp;'lg'<br>&#124;&nbsp;string"
+      },
       "default": "'md'",
       "additionalInfo": { "joy-size": true }
     },
@@ -41,8 +44,8 @@
     },
     "variant": {
       "type": {
-        "name": "enum",
-        "description": "'outlined'<br>&#124;&nbsp;'plain'<br>&#124;&nbsp;'soft'<br>&#124;&nbsp;'solid'"
+        "name": "union",
+        "description": "'outlined'<br>&#124;&nbsp;'plain'<br>&#124;&nbsp;'soft'<br>&#124;&nbsp;'solid'<br>&#124;&nbsp;string"
       },
       "default": "'plain'",
       "additionalInfo": { "joy-variant": true }