diff --git a/apps/ui/package.json b/apps/ui/package.json
index c7fc5523..72e22d69 100644
--- a/apps/ui/package.json
+++ b/apps/ui/package.json
@@ -20,18 +20,18 @@
     "dev:electron": "vite",
     "dev:electron:debug": "cross-env OPEN_DEVTOOLS=true vite",
     "build": "vite build",
-    "build:electron": "node scripts/prepare-server.js && vite build && electron-builder",
-    "build:electron:dir": "node scripts/prepare-server.js && vite build && electron-builder --dir",
-    "build:electron:win": "node scripts/prepare-server.js && vite build && electron-builder --win",
-    "build:electron:win:dir": "node scripts/prepare-server.js && vite build && electron-builder --win --dir",
-    "build:electron:mac": "node scripts/prepare-server.js && vite build && electron-builder --mac",
-    "build:electron:mac:dir": "node scripts/prepare-server.js && vite build && electron-builder --mac --dir",
-    "build:electron:linux": "node scripts/prepare-server.js && vite build && electron-builder --linux",
-    "build:electron:linux:dir": "node scripts/prepare-server.js && vite build && electron-builder --linux --dir",
+    "build:electron": "node scripts/prepare-server.mjs && vite build && electron-builder",
+    "build:electron:dir": "node scripts/prepare-server.mjs && vite build && electron-builder --dir",
+    "build:electron:win": "node scripts/prepare-server.mjs && vite build && electron-builder --win",
+    "build:electron:win:dir": "node scripts/prepare-server.mjs && vite build && electron-builder --win --dir",
+    "build:electron:mac": "node scripts/prepare-server.mjs && vite build && electron-builder --mac",
+    "build:electron:mac:dir": "node scripts/prepare-server.mjs && vite build && electron-builder --mac --dir",
+    "build:electron:linux": "node scripts/prepare-server.mjs && vite build && electron-builder --linux",
+    "build:electron:linux:dir": "node scripts/prepare-server.mjs && vite build && electron-builder --linux --dir",
     "postinstall": "electron-builder install-app-deps",
     "preview": "vite preview",
     "lint": "eslint",
-    "pretest": "node scripts/setup-e2e-fixtures.js",
+    "pretest": "node scripts/setup-e2e-fixtures.mjs",
     "test": "playwright test",
     "test:headed": "playwright test --headed",
     "dev:electron:wsl": "cross-env vite",
@@ -114,7 +114,7 @@
     "appId": "com.automaker.app",
     "productName": "Automaker",
     "artifactName": "${productName}-${version}-${arch}.${ext}",
-    "afterPack": "./scripts/rebuild-server-natives.js",
+    "afterPack": "./scripts/rebuild-server-natives.cjs",
     "directories": {
       "output": "release"
     },
diff --git a/apps/ui/scripts/prepare-server.js b/apps/ui/scripts/prepare-server.mjs
similarity index 100%
rename from apps/ui/scripts/prepare-server.js
rename to apps/ui/scripts/prepare-server.mjs
diff --git a/apps/ui/scripts/rebuild-server-natives.js b/apps/ui/scripts/rebuild-server-natives.cjs
similarity index 100%
rename from apps/ui/scripts/rebuild-server-natives.js
rename to apps/ui/scripts/rebuild-server-natives.cjs
diff --git a/apps/ui/scripts/setup-e2e-fixtures.js b/apps/ui/scripts/setup-e2e-fixtures.mjs
similarity index 100%
rename from apps/ui/scripts/setup-e2e-fixtures.js
rename to apps/ui/scripts/setup-e2e-fixtures.mjs