diff --git a/packages/fields/src/fields/author/author-view.tsx b/packages/fields/src/fields/author/author-view.tsx
index 51e0a1ca59b75..8232350af5193 100644
--- a/packages/fields/src/fields/author/author-view.tsx
+++ b/packages/fields/src/fields/author/author-view.tsx
@@ -17,9 +17,9 @@ import type { User } from '@wordpress/core-data';
 /**
  * Internal dependencies
  */
-import type { BasePost } from '../../types';
+import type { BasePostWithEmbeddedAuthor } from '../../types';
 
-function AuthorView( { item }: { item: BasePost } ) {
+function AuthorView( { item }: { item: BasePostWithEmbeddedAuthor } ) {
 	const { text, imageUrl } = useSelect(
 		( select ) => {
 			const { getEntityRecord } = select( coreStore );
diff --git a/packages/fields/src/fields/author/index.tsx b/packages/fields/src/fields/author/index.tsx
index 6e5a43d44426d..22f9409e05155 100644
--- a/packages/fields/src/fields/author/index.tsx
+++ b/packages/fields/src/fields/author/index.tsx
@@ -7,10 +7,10 @@ import { __ } from '@wordpress/i18n';
 /**
  * Internal dependencies
  */
-import type { BasePost } from '../../types';
+import type { BasePostWithEmbeddedAuthor } from '../../types';
 import AuthorView from './author-view';
 
-const authorField: Field< BasePost > = {
+const authorField: Field< BasePostWithEmbeddedAuthor > = {
 	label: __( 'Author' ),
 	id: 'author',
 	type: 'integer',
diff --git a/packages/fields/src/types.ts b/packages/fields/src/types.ts
index be0391c7c865b..e457ec699554c 100644
--- a/packages/fields/src/types.ts
+++ b/packages/fields/src/types.ts
@@ -25,10 +25,11 @@ interface Links {
 
 interface Author {
 	name: string;
+	avatar_urls: Record< string, string >;
 }
 
-interface Embedded {
-	author?: Author[];
+interface EmbeddedAuthor {
+	author: Author[];
 }
 
 export interface BasePost extends CommonPost {
@@ -48,7 +49,10 @@ export interface BasePost extends CommonPost {
 	date?: string;
 	modified?: string;
 	author?: number;
-	_embedded?: Embedded;
+}
+
+export interface BasePostWithEmbeddedAuthor extends BasePost {
+	_embedded: EmbeddedAuthor;
 }
 
 export interface Template extends CommonPost {