diff --git a/packages/core/src/helpers/createDocument.ts b/packages/core/src/helpers/createDocument.ts
index 518a20dd..ad09eb90 100644
--- a/packages/core/src/helpers/createDocument.ts
+++ b/packages/core/src/helpers/createDocument.ts
@@ -1,9 +1,7 @@
 import { Schema, Node as ProseMirrorNode } from 'prosemirror-model'
-import { AnyObject } from '../types'
+import { AnyObject, Content } from '../types'
 import createNodeFromContent from './createNodeFromContent'
 
-export type Content = string | JSON | null
-
 export default function createDocument(
   content: Content,
   schema: Schema,
diff --git a/packages/core/src/helpers/createNodeFromContent.ts b/packages/core/src/helpers/createNodeFromContent.ts
index 83746e1b..d50752f5 100644
--- a/packages/core/src/helpers/createNodeFromContent.ts
+++ b/packages/core/src/helpers/createNodeFromContent.ts
@@ -5,9 +5,7 @@ import {
   Fragment,
 } from 'prosemirror-model'
 import elementFromString from '../utilities/elementFromString'
-import { AnyObject } from '../types'
-
-export type Content = string | JSON | null
+import { AnyObject, Content } from '../types'
 
 export type CreateNodeFromContentOptions = {
   slice?: boolean,
diff --git a/packages/core/src/types.ts b/packages/core/src/types.ts
index 6858a11f..a43a4120 100644
--- a/packages/core/src/types.ts
+++ b/packages/core/src/types.ts
@@ -40,7 +40,7 @@ export interface EditorOptions {
   onDestroy: () => void,
 }
 
-export type Content = string | JSON | null
+export type Content = string | AnyObject | null
 
 export type CommandProps = {
   editor: Editor,