diff --git a/src/nodes/Heading/index.js b/src/nodes/Heading/index.js
index 4bb5c31b810..bb5adac9ac2 100644
--- a/src/nodes/Heading/index.js
+++ b/src/nodes/Heading/index.js
@@ -9,7 +9,7 @@ const onUpdate = debounce(({ editor }) => {
 		// Only run if editor still exists (prevent dangling debounced extractHeadings function)
 		extractHeadings(editor)
 	}
-}, 900)
+}, 900, { immediate: true })
 
 const Heading = TipTapHeading.extend({
 	addAttributes() {