diff --git a/package.json b/package.json
index 7bca29ca..dda45b83 100644
--- a/package.json
+++ b/package.json
@@ -3,7 +3,7 @@
   "version": "9.0.0-beta.1",
   "description": "Create your next immutable state by mutating the current one",
   "main": "dist/index.js",
-  "module": "dist/immer.esm.mjs",
+  "module": "dist/immer.esm.js",
   "exports": {
     ".": {
       "import": "./dist/immer.esm.mjs",
@@ -14,8 +14,8 @@
   "umd:main": "dist/immer.umd.production.min.js",
   "unpkg": "dist/immer.umd.production.min.js",
   "jsdelivr": "dist/immer.umd.production.min.js",
-  "jsnext:main": "dist/immer.esm.mjs",
-  "react-native": "dist/immer.esm.mjs",
+  "jsnext:main": "dist/immer.esm.js",
+  "react-native": "dist/immer.esm.js",
   "source": "src/immer.ts",
   "types": "./dist/immer.d.ts",
   "typesVersions": {