diff --git a/docs/reference-guides/core-blocks.md b/docs/reference-guides/core-blocks.md
index faef91da28ba3..d33f841475ca1 100644
--- a/docs/reference-guides/core-blocks.md
+++ b/docs/reference-guides/core-blocks.md
@@ -167,7 +167,7 @@ Contains the block elements used to display a comment, like the title, date, aut
 
 -	**Name:** core/comment-template
 -	**Category:** design
--	**Supports:** align, ~~html~~, ~~reusable~~
+-	**Supports:** align, typography (fontSize, lineHeight), ~~html~~, ~~reusable~~
 -	**Attributes:** 
 
 ## Comments
diff --git a/packages/block-library/src/comment-template/block.json b/packages/block-library/src/comment-template/block.json
index 7596ed312ee14..1a8dd4da1ada3 100644
--- a/packages/block-library/src/comment-template/block.json
+++ b/packages/block-library/src/comment-template/block.json
@@ -11,7 +11,20 @@
 	"supports": {
 		"reusable": false,
 		"html": false,
-		"align": true
+		"align": true,
+		"typography": {
+			"fontSize": true,
+			"lineHeight": true,
+			"__experimentalFontFamily": true,
+			"__experimentalFontWeight": true,
+			"__experimentalFontStyle": true,
+			"__experimentalTextTransform": true,
+			"__experimentalTextDecoration": true,
+			"__experimentalLetterSpacing": true,
+			"__experimentalDefaultControls": {
+				"fontSize": true
+			}
+		}
 	},
 	"style": "wp-block-comment-template"
 }