diff --git a/package.json b/package.json
index d1dc79c2..fccf16d7 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,7 @@
 {
   "name": "@commercelayer/sdk",
   "version": "5.0.0-alpha.1",
+  "type": "module",
   "types": "lib/index.d.ts",
   "module": "lib/index.js",
   "scripts": {