diff --git a/docs/reference-guides/core-blocks.md b/docs/reference-guides/core-blocks.md
index b9cae44550181..0e0de9d4f8a50 100644
--- a/docs/reference-guides/core-blocks.md
+++ b/docs/reference-guides/core-blocks.md
@@ -493,7 +493,7 @@ Add a submenu to your navigation. ([Source](https://github.com/WordPress/gutenbe
 -	**Name:** core/navigation-submenu
 -	**Category:** design
 -	**Parent:** core/navigation
--	**Supports:** interactivity (clientNavigation), ~~html~~, ~~reusable~~
+-	**Supports:** interactivity (clientNavigation), typography (fontSize, lineHeight), ~~html~~, ~~reusable~~
 -	**Attributes:** description, id, isTopLevelItem, kind, label, opensInNewTab, rel, title, type, url
 
 ## Page Break
diff --git a/packages/block-library/src/navigation-submenu/block.json b/packages/block-library/src/navigation-submenu/block.json
index 0bcf8a1a47f38..e767b60aec3a6 100644
--- a/packages/block-library/src/navigation-submenu/block.json
+++ b/packages/block-library/src/navigation-submenu/block.json
@@ -59,6 +59,19 @@
 	"supports": {
 		"reusable": false,
 		"html": false,
+		"typography": {
+			"fontSize": true,
+			"lineHeight": true,
+			"__experimentalFontFamily": true,
+			"__experimentalFontWeight": true,
+			"__experimentalFontStyle": true,
+			"__experimentalTextTransform": true,
+			"__experimentalTextDecoration": true,
+			"__experimentalLetterSpacing": true,
+			"__experimentalDefaultControls": {
+				"fontSize": true
+			}
+		},
 		"interactivity": {
 			"clientNavigation": true
 		}