diff --git a/.changeset/red-chicken-provide.md b/.changeset/red-chicken-provide.md
new file mode 100644
index 0000000..3ddcbad
--- /dev/null
+++ b/.changeset/red-chicken-provide.md
@@ -0,0 +1,5 @@
+---
+"@openfun/cunningham-react": patch
+---
+
+Make package pure ESM
diff --git a/packages/react/package.json b/packages/react/package.json
index b9076c6..94d5b9f 100644
--- a/packages/react/package.json
+++ b/packages/react/package.json
@@ -8,12 +8,10 @@
   "type": "module",
   "license": "MIT",
   "module": "./dist/index.js",
-  "main": "./dist/index.cjs",
   "types": "./dist/index.d.ts",
   "exports": {
     ".": {
-      "import": "./dist/index.js",
-      "require": "./dist/index.cjs",
+      "default": "./dist/index.js",
       "types": "./dist/index.d.ts"
     },
     "./style": "./dist/style.css",