diff --git a/jest.config.js b/jest.config.mjs
similarity index 100%
rename from jest.config.js
rename to jest.config.mjs
diff --git a/package.json b/package.json
index 1709bf40..51a6e51e 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,6 @@
 {
   "name": "@googlemaps/js-api-loader",
   "version": "1.16.3",
-  "type": "module",
   "description": "Wrapper for the loading of Google Maps JavaScript API script in the browser",
   "keywords": [
     "google",
diff --git a/rollup.config.js b/rollup.config.mjs
similarity index 100%
rename from rollup.config.js
rename to rollup.config.mjs
diff --git a/typedoc.js b/typedoc.mjs
similarity index 100%
rename from typedoc.js
rename to typedoc.mjs