diff --git a/packages/blocks/src/api/constants.js b/packages/blocks/src/api/constants.js
index b852fe3932fa05..22205777d14e4b 100644
--- a/packages/blocks/src/api/constants.js
+++ b/packages/blocks/src/api/constants.js
@@ -214,6 +214,7 @@ export const __EXPERIMENTAL_STYLE_PROPERTY = {
 
 export const __EXPERIMENTAL_ELEMENTS = {
 	link: 'a',
+	heading: 'h1, h2, h3, h4, h5, h6',
 	h1: 'h1',
 	h2: 'h2',
 	h3: 'h3',
@@ -221,6 +222,8 @@ export const __EXPERIMENTAL_ELEMENTS = {
 	h5: 'h5',
 	h6: 'h6',
 	button: '.wp-element-button, .wp-block-button__link',
+	caption:
+		'.wp-element-caption, .wp-block-audio figcaption, .wp-block-embed figcaption, .wp-block-gallery figcaption, .wp-block-image figcaption, .wp-block-table figcaption, .wp-block-video figcaption',
 };
 
 export const __EXPERIMENTAL_PATHS_WITH_MERGE = {