diff --git a/package.json b/package.json
index 1f44d44..8b55a03 100644
--- a/package.json
+++ b/package.json
@@ -3,6 +3,7 @@
   "private": false,
   "version": "3.2.4",
   "main": "./src/index.js",
+  "type": "commonjs",
   "sideEffects": false,
   "homepage": "https://github.com/adeira/universe/tree/master/src/relay",
   "description": "Opinionated wrapper around Relay - a JavaScript framework for building data-driven React applications",