diff --git a/packages/html-manager/src/htmlmanager.ts b/packages/html-manager/src/htmlmanager.ts
index 9808bcaa11..9e194532e5 100644
--- a/packages/html-manager/src/htmlmanager.ts
+++ b/packages/html-manager/src/htmlmanager.ts
@@ -15,7 +15,6 @@ import {
 
 import { WidgetRenderer, WIDGET_MIMETYPE } from './output_renderers';
 import { WidgetModel, WidgetView, DOMWidgetView } from '@jupyter-widgets/base';
-import { requirePromise } from './utils';
 
 export class HTMLManager extends ManagerBase {
   constructor(options?: {
@@ -118,10 +117,10 @@ export class HTMLManager extends ManagerBase {
 
         if (best === '1.2.0') {
           // ipywidgets 7 model
-          requirePromise(['@jupyter-widgets/base7']).then(resolve);
+          resolve(require('@jupyter-widgets/base7'));
         } else {
           // ipywidgets 8 model
-          requirePromise(['@jupyter-widgets/base']).then(resolve);
+          resolve(require('@jupyter-widgets/base'));
         }
       } else if (moduleName === '@jupyter-widgets/controls') {
         const best = maxSatisfying(['1.5.0', '2.0.0'], moduleVersion);
@@ -138,7 +137,7 @@ export class HTMLManager extends ManagerBase {
           ) {
             require('@jupyter-widgets/controls7/css/labvariables.css');
           }
-          requirePromise(['@jupyter-widgets/controls7']).then(resolve);
+          resolve(require('@jupyter-widgets/controls7'));
         } else {
           // ipywidgets 8 controls JS and CSS
           require('@jupyter-widgets/controls/css/widgets-base.css');
@@ -151,7 +150,8 @@ export class HTMLManager extends ManagerBase {
           ) {
             require('@jupyter-widgets/controls/css/labvariables.css');
           }
-          requirePromise(['@jupyter-widgets/controls']).then(resolve);
+
+          resolve(require('@jupyter-widgets/controls'));
         }
       } else if (moduleName === '@jupyter-widgets/output') {
         resolve(outputWidgets);
diff --git a/packages/html-manager/src/output_renderers.ts b/packages/html-manager/src/output_renderers.ts
index c343aa1201..24155086ec 100644
--- a/packages/html-manager/src/output_renderers.ts
+++ b/packages/html-manager/src/output_renderers.ts
@@ -27,7 +27,7 @@ export class WidgetRenderer extends Widget implements IRenderMime.IRenderer {
     try {
       const wModel = await this._manager.get_model(source.model_id);
       const wView = await this._manager.create_view(wModel);
-      Widget.attach(wView.luminoWidget, this.node);
+      Widget.attach(wView.luminoWidget || wView.pWidget, this.node);
     } catch (err) {
       console.log('Error displaying widget');
       console.log(err);
diff --git a/packages/html-manager/test/src/output_test.ts b/packages/html-manager/test/src/output_test.ts
index 712c58f2ab..ad1298e213 100644
--- a/packages/html-manager/test/src/output_test.ts
+++ b/packages/html-manager/test/src/output_test.ts
@@ -63,7 +63,6 @@ describe('Output widget', function () {
     expect(elt.querySelectorAll('table').length).to.equal(1);
   });
 
-
   it('renders widgets ipywidgets 7', async function () {
     const modelState = {
       _view_module: '@jupyter-widgets/output',