diff --git a/package.json b/package.json
index 3cc701c..05acc94 100644
--- a/package.json
+++ b/package.json
@@ -8,7 +8,7 @@
   "type": "module",
   "scripts": {
     "test": "(npm run build)",
-    "build": "(tsbuild custom ts_web --web && tsbundle element)",
+    "build": "(tsbuild element --web --allowimplicitany --skiplibcheck && tsbundle element)",
     "watch": "tswatch element"
   },
   "author": "Lossless GmbH",
diff --git a/ts_web/elements/wcc-dashboard.ts b/ts_web/elements/wcc-dashboard.ts
index 0136e58..e6c333f 100644
--- a/ts_web/elements/wcc-dashboard.ts
+++ b/ts_web/elements/wcc-dashboard.ts
@@ -3,17 +3,16 @@ import { DeesElement, property, html, customElement, TemplateResult, queryAsync
 import * as plugins from '../wcctools.plugins.js';
 
 // wcc tools
-import './wcc-frame';
-import './wcc-sidebar';
-import './wcc-properties';
-import { TTheme } from './wcc-properties';
-import { TElementType } from './wcc-sidebar';
+import './wcc-frame.js';
+import './wcc-sidebar.js';
+import './wcc-properties.js';
+import { TTheme } from './wcc-properties.js';
+import { TElementType } from './wcc-sidebar.js';
 import { breakpoints } from '@designestate/dees-domtools';
-import { WccFrame } from './wcc-frame';
+import { WccFrame } from './wcc-frame.js';
 
 @customElement('wcc-dashboard')
 export class WccDashboard extends DeesElement {
-  public domtools: plugins.deesDomtools.DomTools;
 
   @property()
   public selectedType: TElementType;
diff --git a/ts_web/elements/wcc-properties.ts b/ts_web/elements/wcc-properties.ts
index 3010e5d..140b39f 100644
--- a/ts_web/elements/wcc-properties.ts
+++ b/ts_web/elements/wcc-properties.ts
@@ -1,4 +1,4 @@
-import { LitElement, property, html, customElement, TemplateResult, state } from 'lit-element';
+import { DeesElement, property, html, customElement, TemplateResult, state } from '@designestate/dees-element';
 import { WccDashboard } from './wcc-dashboard.js';
 
 export type TPropertyType = 'String' | 'Number' | 'Boolean' | 'Object' | 'Enum' | 'Array';
@@ -13,12 +13,14 @@ export const setEnvironment = (envArg) => {
 };
 
 @customElement('wcc-properties')
-export class WccProperties extends LitElement {
-  @property()
-  dashboardRef: WccDashboard;
+export class WccProperties extends DeesElement {
+  @property({
+    type: WccDashboard
+  })
+  public dashboardRef: WccDashboard;
 
   @property()
-  public selectedItem: (() => TemplateResult) | LitElement;
+  public selectedItem: (() => TemplateResult) | DeesElement;
 
   @property()
   public selectedViewport: TEnvironment = 'native';