diff --git a/bili.config.ts b/bili.config.ts
index 7f7ca8b2..a7015f46 100644
--- a/bili.config.ts
+++ b/bili.config.ts
@@ -18,6 +18,9 @@ const config: Config = {
         if (format === "umd") {
             config.output.minify = true
         }
+        if (format === "esm") {
+            config.output.fileName = "[name].module.js"
+        }
         return config
     }
 }
diff --git a/package.json b/package.json
index 9dfcdc8c..1e95a79b 100644
--- a/package.json
+++ b/package.json
@@ -4,9 +4,9 @@
   "description": "Create your next immutable state by mutating the current one",
   "main": "dist/immer.js",
   "umd:main": "dist/immer.umd.js",
-  "module": "dist/immer.mjs",
-  "jsnext:main": "dist/immer.mjs",
-  "react-native": "dist/immer.mjs",
+  "module": "dist/immer.module.js",
+  "jsnext:main": "dist/immer.module.js",
+  "react-native": "dist/immer.module.js",
   "types": "./dist/immer.d.ts",
   "scripts": {
     "watch": "jest --watch",