diff --git a/.changeset/better-days-bow.md b/.changeset/better-days-bow.md
new file mode 100644
index 000000000..b1baf994b
--- /dev/null
+++ b/.changeset/better-days-bow.md
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+---
+'mermaid': minor
+'@mermaid-js/parser': minor
+---
+
+Adding support for the new diagram type nested treemap