diff --git a/docs/designers-developers/developers/themes/theme-json.md b/docs/designers-developers/developers/themes/theme-json.md
index 91f1ee87ea266..74831234b7f54 100644
--- a/docs/designers-developers/developers/themes/theme-json.md
+++ b/docs/designers-developers/developers/themes/theme-json.md
@@ -467,7 +467,7 @@ These are the current typography properties supported by blocks:
 | Post Title | Yes | Yes | - | - | Yes | - | - |
 | Preformatted | - | Yes | - | - | - | - | - |
 | Site Tagline | Yes | Yes | - | - | Yes | - | - |
-| Site Title | Yes | Yes | - | - | Yes | - | - |
+| Site Title | Yes | Yes | - | - | Yes | - | Yes |
 | Verse | Yes | Yes | - | - | - | - | - |
 
 [1] The heading block represents 6 distinct HTML elements: H1-H6. It comes with selectors to target each individual element (ex: core/heading/h1 for H1, etc).
diff --git a/packages/block-library/src/site-title/block.json b/packages/block-library/src/site-title/block.json
index 6a6cf63cb4dff..91c346cac52fc 100644
--- a/packages/block-library/src/site-title/block.json
+++ b/packages/block-library/src/site-title/block.json
@@ -19,6 +19,7 @@
 		},
 		"fontSize": true,
 		"lineHeight": true,
-		"__experimentalFontFamily": true
+		"__experimentalFontFamily": true,
+		"__experimentalTextTransform": true
 	}
 }