diff --git a/js/package.json b/js/package.json
index 1034bc7..7af9e34 100644
--- a/js/package.json
+++ b/js/package.json
@@ -3,11 +3,8 @@
   "version": "3.0.0-alpha.0",
   "description": "PMTiles archive decoder for browsers",
   "type": "module",
-  "exports": {
-    "import": "./dist/index.mjs",
-    "require": "./dist/index.cjs"
-  },
-  "types": "dist/index.d.ts",
+  "exports": "./dist/index.mjs",
+  "types": "./dist/index.d.ts",
   "source": "index.ts",
   "files": [
     "dist",
@@ -16,9 +13,8 @@
   "scripts": {
     "build-iife": "esbuild index.ts --outfile=dist/index.js --target=es6 --global-name=pmtiles --bundle --format=iife",
     "build-esm": "esbuild index.ts --outfile=dist/index.mjs --target=es6 --global-name=pmtiles --bundle --format=esm",
-    "build-cjs": "esbuild index.ts --outfile=dist/index.cjs --target=es6 --global-name=pmtiles --bundle --format=cjs",
     "build-tsc": "tsc --declaration --emitDeclarationOnly --outdir dist",
-    "build": "npm run build-iife && npm run build-esm && npm run build-cjs && npm run build-tsc",
+    "build": "npm run build-iife && npm run build-esm && npm run build-tsc",
     "test": "tsx test/index.test.ts",
     "tsc": "tsc --noEmit --watch",
     "prettier": "prettier --write *.ts test/*.ts",