diff --git a/LICENSE b/LICENSE
index fb85593..2fbeed4 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,3 +1,5 @@
+# carol-js
+
 MIT License
 
 Copyright (c) 2023 marihachi <marihachi0620@gmail.com>
diff --git a/docs/api.md b/doc/api.md
similarity index 100%
rename from docs/api.md
rename to doc/api.md
diff --git a/carol.d.ts b/lib/carol.d.ts
similarity index 100%
rename from carol.d.ts
rename to lib/carol.d.ts
diff --git a/carol.js b/lib/carol.js
similarity index 100%
rename from carol.js
rename to lib/carol.js
diff --git a/package-lock.json b/package-lock.json
index 58db283..97f3637 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,31 +1,13 @@
 {
   "name": "carol-js",
-  "version": "1.0.0",
+  "version": "0.2.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "carol-js",
-      "version": "1.0.0",
-      "license": "MIT",
-      "devDependencies": {
-        "@types/node": "^20.8.8"
-      }
-    },
-    "node_modules/@types/node": {
-      "version": "20.9.2",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-20.9.2.tgz",
-      "integrity": "sha512-WHZXKFCEyIUJzAwh3NyyTHYSR35SevJ6mZ1nWwJafKtiQbqRTIKSRcw3Ma3acqgsent3RRDqeVwpHntMk+9irg==",
-      "dev": true,
-      "dependencies": {
-        "undici-types": "~5.26.4"
-      }
-    },
-    "node_modules/undici-types": {
-      "version": "5.26.5",
-      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-5.26.5.tgz",
-      "integrity": "sha512-JlCMO+ehdEIKqlFxk6IfVoAUVmgz7cU7zD/h9XZ0qzeosSHmUJVOzSQvvYSYWXkFXC+IfLKSIffhv0sVZup6pA==",
-      "dev": true
+      "version": "0.2.0",
+      "license": "MIT"
     }
   }
 }
diff --git a/package.json b/package.json
index 638a12c..816c7ae 100644
--- a/package.json
+++ b/package.json
@@ -13,13 +13,23 @@
   "repository": "https://github.com/marihachi/carol-js.git",
   "bugs": "https://github.com/marihachi/carol-js/issues",
   "type": "module",
-  "module": "./carol.js",
-  "types": "./carol.d.ts",
+  "module": "./lib/carol.js",
+  "types": "./lib/carol.d.ts",
+  "exports": {
+		".": {
+			"import": "./lib/carol.js",
+			"types": "./lib/carol.d.ts"
+		},
+		"./*": {
+			"import": "./lib/*",
+			"types": "./lib/*"
+		}
+	},
   "scripts": {
-    "test": "node --test ./test.js"
+    "test": "node --test ./test/*.js"
   },
   "files": [
-    "carol.js",
-    "carol.d.ts"
+    "./lib/carol.js",
+    "./lib/carol.d.ts"
   ]
 }
diff --git a/test.js b/test/main.js
similarity index 95%
rename from test.js
rename to test/main.js
index 085f976..d6e73ab 100644
--- a/test.js
+++ b/test/main.js
@@ -1,6 +1,6 @@
-import { strict as assert } from 'node:assert';
-import test, { run } from 'node:test';
-import * as C from './carol.js';
+import assert from 'node:assert';
+import test from 'node:test';
+import * as C from 'carol-js';
 
 test('pattern()', () => {
   assert.strictEqual(C.pattern(/abc/).toRegex().source, 'abc');