diff --git a/package.json b/package.json
index 3d90e72d..067d154f 100644
--- a/package.json
+++ b/package.json
@@ -8,7 +8,7 @@
   "module": "./dist/lib.module.js",
   "exports": {
     "require": "./dist/lib.js",
-    "default": "./dist/lib.modern.js"
+    "default": "./dist/lib.modern.mjs"
   },
   "types": "./dist/src/index.d.ts",
   "scripts": {