diff --git a/types/wordpress__block-editor/components/block-heading-level-dropdown.d.ts b/types/wordpress__block-editor/components/block-heading-level-dropdown.d.ts
index b428969866fe01..2f7ffbb43e81b5 100644
--- a/types/wordpress__block-editor/components/block-heading-level-dropdown.d.ts
+++ b/types/wordpress__block-editor/components/block-heading-level-dropdown.d.ts
@@ -1,7 +1,7 @@
 import { JSX } from "react";
 
 declare namespace HeadingLevelDropdown {
-    type HeadingLevel = 1 | 2 | 3 | 4 | 5 | 6;
+    type HeadingLevel = 0 | 1 | 2 | 3 | 4 | 5 | 6;
     interface Props {
         options?: HeadingLevel[] | (readonly HeadingLevel[]) | undefined;
         value?: HeadingLevel | undefined;
diff --git a/types/wordpress__block-editor/wordpress__block-editor-tests.tsx b/types/wordpress__block-editor/wordpress__block-editor-tests.tsx
index f70620dd1baef1..92c27713fa770b 100644
--- a/types/wordpress__block-editor/wordpress__block-editor-tests.tsx
+++ b/types/wordpress__block-editor/wordpress__block-editor-tests.tsx
@@ -219,6 +219,7 @@ be.withFontSizes("fontSize")(() => <h1>Hello World</h1>);
 //
 // heading-level-dropdown
 //
+<be.HeadingLevelDropdown value={0} />;
 <be.HeadingLevelDropdown value={5} />;
 <be.HeadingLevelDropdown value={5} options={[4]} />;
 <be.HeadingLevelDropdown value={5} options={[4]} onChange={v => console.log(v)} />;