diff --git a/.changeset/eight-suits-provide.md b/.changeset/eight-suits-provide.md
new file mode 100644
index 0000000..6ec465d
--- /dev/null
+++ b/.changeset/eight-suits-provide.md
@@ -0,0 +1,5 @@
+---
+"typescript-eslint-parser-for-extra-files": minor
+---
+
+Migrate to tsdown to fix dts output
diff --git a/.eslintrc.js b/.eslintrc.cjs
similarity index 100%
rename from .eslintrc.js
rename to .eslintrc.cjs
diff --git a/.prettierrc.js b/.prettierrc.js
index d740f9c..bbc920f 100644
--- a/.prettierrc.js
+++ b/.prettierrc.js
@@ -1,3 +1,3 @@
-module.exports = {
+export default {
   plugins: ['prettier-plugin-svelte', 'prettier-plugin-astro']
 }
diff --git a/package.json b/package.json
index a1eef31..5910680 100644
--- a/package.json
+++ b/package.json
@@ -1,8 +1,12 @@
 {
   "name": "typescript-eslint-parser-for-extra-files",
   "version": "0.8.0",
+  "type": "module",
   "description": "An experimental ESLint custom parser for Vue, Svelte, and Astro for use with TypeScript. It provides type information in combination with each framework's ESLint custom parser.",
-  "repository": "git+https://github.com/ota-meshi/typescript-eslint-parser-for-extra-files.git",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/ota-meshi/typescript-eslint-parser-for-extra-files.git"
+  },
   "homepage": "https://github.com/ota-meshi/typescript-eslint-parser-for-extra-files#readme",
   "author": "Yosuke Ota (https://github.com/ota-meshi)",
   "funding": "https://github.com/sponsors/ota-meshi",
@@ -11,17 +15,23 @@
   "engines": {
     "node": ">=16.0.0"
   },
-  "main": "lib/index.js",
-  "module": "./lib/index.mjs",
+  "main": "./lib/index.cjs",
+  "module": "./lib/index.js",
+  "types": "./lib/index.d.ts",
   "exports": {
     ".": {
-      "import": "./lib/index.mjs",
-      "require": "./lib/index.js"
+      "module-sync": {
+        "types": "./lib/index.d.ts",
+        "default": "./lib/index.js"
+      },
+      "default": {
+        "types": "./lib/index.d.cts",
+        "default": "./lib/index.cjs"
+      }
     }
   },
-  "types": "./lib/index.d.ts",
   "files": [
-    "lib"
+    "lib/"
   ],
   "keywords": [
     "eslint",
@@ -32,7 +42,7 @@
     "typescript"
   ],
   "scripts": {
-    "build": "tsup",
+    "build": "tsdown",
     "clean": "rimraf .nyc_output lib coverage",
     "cover": "nyc --reporter=lcov yarn test",
     "debug": "yarn mocha \"tests/src/**/*.ts\" --reporter dot --timeout 60000",
@@ -107,12 +117,14 @@
     "prettier-plugin-astro": "^0.14.0",
     "prettier-plugin-pkg": "^0.19.0",
     "prettier-plugin-svelte": "^3.0",
+    "publint": "^0.3.12",
     "semver": "^7.3.5",
     "svelte": "^4.0.0",
     "svelte-eslint-parser": "^1.0.0",
     "svelte2tsx": "^0.7.0",
-    "tsup": "^8.0.0",
+    "tsdown": "^0.10.1",
     "typescript": "~5.8.0",
+    "unplugin-unused": "^0.4.4",
     "vue": "^3.2.41",
     "vue-eslint-parser": "^10.0.0"
   },
diff --git a/src/index.ts b/src/index.ts
index bdcb6e4..217ff25 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -4,8 +4,7 @@ import { TSServiceManager } from "./ts";
 import * as tsEslintParser from "@typescript-eslint/parser";
 import { getProjectConfigFiles } from "./utils/get-project-config-files";
 import { resolveProjectList } from "./utils/resolve-project-list";
-export * as meta from "./meta";
-export { name } from "./meta";
+export { default as meta, name } from "./meta";
 
 const DEFAULT_EXTRA_FILE_EXTENSIONS = [".vue", ".svelte", ".astro"];
 const tsServiceManager = new TSServiceManager();
diff --git a/src/meta.ts b/src/meta.ts
index 96a0703..5601c32 100644
--- a/src/meta.ts
+++ b/src/meta.ts
@@ -1 +1,6 @@
-export { name, version } from "../package.json";
+import { name as pkgName, version } from "../package.json";
+
+const meta: { name: string; version: string } = { name: pkgName, version };
+export default meta;
+
+export const name: string = pkgName;
diff --git a/tsconfig.json b/tsconfig.json
index 5add73d..c60e7b9 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -3,9 +3,12 @@
     "target": "es2015",
     "strict": true,
     "lib": ["es2020", "DOM"],
-    "module": "Node16",
-    "moduleResolution": "Node16",
+    "module": "Preserve",
+    "moduleResolution": "Bundler",
     "declaration": true,
+    "isolatedDeclarations": true,
+    "isolatedModules": true,
+    "verbatimModuleSyntax": true,
     "noImplicitAny": true,
     "noImplicitReturns": true,
     "noFallthroughCasesInSwitch": true,
diff --git a/tsdown.config.mts b/tsdown.config.mts
new file mode 100644
index 0000000..c18535d
--- /dev/null
+++ b/tsdown.config.mts
@@ -0,0 +1,11 @@
+import { defineConfig } from "tsdown";
+
+export default defineConfig({
+  entry: ["src/index.ts"],
+  format: ["cjs", "esm"],
+  target: ["node16"],
+  outDir: "lib",
+  skipNodeModulesBundle: true,
+  publint: { strict: true, pack: "npm" },
+  unused: true,
+});
diff --git a/tsup.config.ts b/tsup.config.ts
deleted file mode 100644
index 0bd8a93..0000000
--- a/tsup.config.ts
+++ /dev/null
@@ -1,9 +0,0 @@
-import { defineConfig } from "tsup";
-
-export default defineConfig({
-  clean: true,
-  dts: true,
-  entryPoints: ["src/index.ts"],
-  format: ["cjs", "esm"],
-  outDir: "lib",
-});