diff --git a/examples/styled-components/next-env.d.ts b/examples/styled-components/next-env.d.ts
index a4a7b3f..4f11a03 100644
--- a/examples/styled-components/next-env.d.ts
+++ b/examples/styled-components/next-env.d.ts
@@ -2,4 +2,4 @@
 /// <reference types="next/image-types/global" />
 
 // NOTE: This file should not be edited
-// see https://nextjs.org/docs/pages/building-your-application/configuring/typescript for more information.
+// see https://nextjs.org/docs/basic-features/typescript for more information.
diff --git a/package.json b/package.json
index b95cb34..90a385e 100644
--- a/package.json
+++ b/package.json
@@ -1,15 +1,15 @@
 {
   "name": "css-variable",
-  "version": "4.0.1",
+  "version": "4.0.2",
   "description": "define CSS custom properties (variables) in JS",
-  "main": "./dist/index.js",
+  "main": "./dist/index.cjs",
   "module": "./dist/index.mjs",
   "type": "module",
   "exports": {
     ".": {
       "types": "./dist/index.d.ts",
       "import": "./dist/index.mjs",
-      "require": "./dist/index.js"
+      "require": "./dist/index.cjs"
     },
     "./babel": "./babel/index.cjs",
     "./swc": "./swc/target/wasm32-wasi/release/swc_plugin_css_variable.wasm"
@@ -26,7 +26,7 @@
   "scripts": {
     "prepublishOnly": "npm run build && npm run build:swc",
     "build": "npm run build:types && npm run build:commonjs && npm run build:module && npm run build:modulemin",
-    "build:commonjs": "babel --config-file=./babel.commonjs.cjs -o dist/index.js src/index.ts",
+    "build:commonjs": "babel --config-file=./babel.commonjs.cjs -o dist/index.cjs src/index.ts",
     "build:module": "babel --config-file=./babel.config.cjs -o dist/index.mjs src/index.ts",
     "build:types": "tsc --skipLibCheck --emitDeclarationOnly --declaration --target ESNext --outDir dist src/index.ts",
     "build:modulemin": "terser ./dist/index.mjs -o ./dist/index.min.mjs -m --ecma 2017 --module --toplevel -b -c",
diff --git a/test/swc/jest.config.js b/test/swc/jest.config.js
index 4ad9422..092cb6a 100644
--- a/test/swc/jest.config.js
+++ b/test/swc/jest.config.js
@@ -1,7 +1,7 @@
 module.exports = {
   rootDir: __dirname,
   moduleNameMapper: {
-    "css-variable$": "../../dist",
+    "css-variable$": "../../",
   },
   transform: {
     "^.+\\.(t|j)sx?$": [