diff --git a/packages/commons/vite.config.ts b/packages/commons/vite.config.ts
index e3a2038a3..51134eb87 100644
--- a/packages/commons/vite.config.ts
+++ b/packages/commons/vite.config.ts
@@ -2,22 +2,18 @@
 import { defineConfig } from 'vite';
 
 export default defineConfig(() => ({
-  root: __dirname,
-  cacheDir: '../../node_modules/.vite/packages/commons',
-  plugins: [],
-  // Uncomment this if you are using workers.
-  // worker: {
-  //  plugins: [ nxViteTsPaths() ],
-  // },
-  test: {
-    'watch': false,
-    'globals': true,
-    'environment': "node",
-    'include': ["src/**/*.{test,spec}.{js,mjs,cjs,ts,mts,cts,jsx,tsx}"],
-    'reporters': ["default"],
-    'coverage': {
-    'reportsDirectory': './test-output/vitest/coverage',
-    'provider': 'v8' as const,
-}
-  },
+    root: __dirname,
+    cacheDir: '../../node_modules/.vite/packages/commons',
+    plugins: [],
+    test: {
+        'watch': false,
+        'globals': true,
+        'environment': "node",
+        'include': ["src/**/*.{test,spec}.{js,mjs,cjs,ts,mts,cts,jsx,tsx}"],
+        'reporters': ["default"],
+        'coverage': {
+            'reportsDirectory': './test-output/vitest/coverage',
+            'provider': 'v8' as const,
+        }
+    },
 }));
diff --git a/packages/highlightjs/src/syntax_highlighting.spec.ts b/packages/highlightjs/src/syntax_highlighting.spec.ts
index 7c4acedac..6e2a8e666 100644
--- a/packages/highlightjs/src/syntax_highlighting.spec.ts
+++ b/packages/highlightjs/src/syntax_highlighting.spec.ts
@@ -9,7 +9,7 @@ describe("Syntax highlighting definitions", () => {
                 continue;
             }
 
-            const language = (await loader).default;
+            const language = (await loader()).default;
 
             hljs.registerLanguage(mime, language);
             hljs.highlight("Hello world", {
diff --git a/packages/highlightjs/vite.config.ts b/packages/highlightjs/vite.config.ts
index 4bb602837..4171ee3e1 100644
--- a/packages/highlightjs/vite.config.ts
+++ b/packages/highlightjs/vite.config.ts
@@ -4,34 +4,39 @@ import dts from 'vite-plugin-dts';
 import * as path from 'path';
 
 export default defineConfig(() => ({
-  root: __dirname,
-  cacheDir: '../../node_modules/.vite/packages/highlightjs',
-  plugins: [dts({ entryRoot: 'src', tsconfigPath: path.join(__dirname, 'tsconfig.lib.json') }), ],
-  // Uncomment this if you are using workers.
-  // worker: {
-  //  plugins: [ nxViteTsPaths() ],
-  // },
-  // Configuration for building your library.
-  // See: https://vitejs.dev/guide/build.html#library-mode
-  build: {
-    outDir: './dist',
-    emptyOutDir: true,
-    reportCompressedSize: true,
-    commonjsOptions: {
-      transformMixedEsModules: true,
+    root: __dirname,
+    cacheDir: '../../node_modules/.vite/packages/highlightjs',
+    plugins: [dts({ entryRoot: 'src', tsconfigPath: path.join(__dirname, 'tsconfig.lib.json') }),],
+    build: {
+        outDir: './dist',
+        emptyOutDir: true,
+        reportCompressedSize: true,
+        commonjsOptions: {
+            transformMixedEsModules: true,
+        },
+        lib: {
+            // Could also be a dictionary or array of multiple entry points.
+            entry: 'src/index.ts',
+            name: 'highlightjs',
+            fileName: 'index',
+            // Change this to the formats you want to support.
+            // Don't forget to update your package.json as well.
+            formats: ['es' as const]
+        },
+        rollupOptions: {
+            // External packages that should not be bundled into your library.
+            external: []
+        },
     },
-    lib: {
-      // Could also be a dictionary or array of multiple entry points.
-      entry: 'src/index.ts',
-      name: 'highlightjs',
-      fileName: 'index',
-      // Change this to the formats you want to support.
-      // Don't forget to update your package.json as well.
-      formats: ['es' as const]
+    test: {
+        'watch': false,
+        'globals': true,
+        'environment': "happy-dom",
+        'include': ["src/**/*.{test,spec}.{js,mjs,cjs,ts,mts,cts,jsx,tsx}"],
+        'reporters': ["default"],
+        'coverage': {
+            'reportsDirectory': './test-output/vitest/coverage',
+            'provider': 'v8' as const,
+        }
     },
-    rollupOptions: {
-      // External packages that should not be bundled into your library.
-      external: []
-    },
-  },
 }));