diff --git a/demo/vite.github-page.config.ts b/demo/vite.github-page.config.ts
index c6a9ffe8..ab2409f5 100644
--- a/demo/vite.github-page.config.ts
+++ b/demo/vite.github-page.config.ts
@@ -2,5 +2,8 @@ import { defineConfig } from 'vite'
 
 export default defineConfig({
   base: 'https://codingame.github.io/monaco-vscode-api',
-  assetsInclude: ['**/*.wasm']
+  assetsInclude: ['**/*.wasm'],
+  resolve: {
+    dedupe: ['monaco-editor']
+  }
 })