diff --git a/package.json b/package.json
index 6993dc4..f966f84 100644
--- a/package.json
+++ b/package.json
@@ -14,24 +14,23 @@
     "type": "git"
   },
   "license": "MIT",
-  "type": "module",
   "files": [
     "dist"
   ],
-  "main": "./dist/maska.umd.cjs",
-  "module": "./dist/maska.js",
+  "main": "./dist/maska.umd.js",
+  "module": "./dist/maska.mjs",
   "types": "./dist/maska.d.ts",
   "exports": {
     ".": {
       "types": "./dist/maska.d.ts",
-      "import": "./dist/maska.js",
-      "require": "./dist/maska.umd.cjs"
+      "import": "./dist/maska.mjs",
+      "require": "./dist/maska.umd.js"
     }
   },
   "scripts": {
     "dev": "vite",
     "build": "vue-tsc && vite build",
-    "build:demo": "vite build --config vite.config.demo.ts",
+    "build:demo": "vite build --config vite.config.demo.mts",
     "test": "vitest run",
     "test:coverage": "vitest run --coverage",
     "lint": "ts-standard src",
diff --git a/tsconfig.node.json b/tsconfig.node.json
index 66bfa30..1c82900 100644
--- a/tsconfig.node.json
+++ b/tsconfig.node.json
@@ -6,5 +6,5 @@
     "resolveJsonModule": true,
     "allowSyntheticDefaultImports": true
   },
-  "include": ["vite.config.ts"]
+  "include": ["vite.config.mts"]
 }
diff --git a/vite.config.demo.ts b/vite.config.demo.mts
similarity index 100%
rename from vite.config.demo.ts
rename to vite.config.demo.mts
diff --git a/vite.config.ts b/vite.config.mts
similarity index 94%
rename from vite.config.ts
rename to vite.config.mts
index d43ffcf..983c5b2 100644
--- a/vite.config.ts
+++ b/vite.config.mts
@@ -12,8 +12,7 @@ export default defineConfig({
   build: {
     lib: {
       entry: resolve(__dirname, 'src/index.ts'),
-      name: 'Maska',
-      fileName: 'maska'
+      name: 'Maska'
     }
   },
   plugins: [