diff --git a/with-nextjs/components/editor.tsx b/with-nextjs/components/editor.tsx
index 12e1b97..006e066 100644
--- a/with-nextjs/components/editor.tsx
+++ b/with-nextjs/components/editor.tsx
@@ -30,7 +30,7 @@ interface MyEditorProps {
 }
 
 const CoreEditor: React.FC<MyEditorProps> = ({ onChange, initialContent }) => {
-  const { manager } = useRemirror({ extensions: () => [new BoldExtension()] });
+  const { manager } = useRemirror({ extensions: () => [new BoldExtension({})] });
   return (
     <div style={{ width: "100%", maxWidth: "500px" }}>
       <Remirror
diff --git a/with-vite/src/Editor.tsx b/with-vite/src/Editor.tsx
index 13f1373..013939f 100644
--- a/with-vite/src/Editor.tsx
+++ b/with-vite/src/Editor.tsx
@@ -16,10 +16,10 @@ import {
 } from "@remirror/react";
 
 const extensions = () => [
-  new HeadingExtension(),
-  new BoldExtension(),
-  new ItalicExtension(),
-  new UnderlineExtension(),
+  new HeadingExtension({}),
+  new BoldExtension({}),
+  new ItalicExtension({}),
+  new UnderlineExtension({}),
 ];
 
 function EditorToolbar() {