diff --git a/packages/block-library/src/comments-title/block.json b/packages/block-library/src/comments-title/block.json
index a927f7d98c652..3c5db438a3fe6 100644
--- a/packages/block-library/src/comments-title/block.json
+++ b/packages/block-library/src/comments-title/block.json
@@ -49,10 +49,12 @@
 		"typography": {
 			"fontSize": true,
 			"lineHeight": true,
-			"__experimentalFontStyle": true,
-			"__experimentalFontWeight": true,
 			"__experimentalFontFamily": true,
+			"__experimentalFontWeight": true,
+			"__experimentalFontStyle": true,
 			"__experimentalTextTransform": true,
+			"__experimentalTextDecoration": true,
+			"__experimentalLetterSpacing": true,
 			"__experimentalDefaultControls": {
 				"fontSize": true,
 				"__experimentalFontFamily": true,