diff --git a/packages/x-archetype-utils/package.json b/packages/x-archetype-utils/package.json
index 011699fd76..f63f7e1871 100644
--- a/packages/x-archetype-utils/package.json
+++ b/packages/x-archetype-utils/package.json
@@ -26,7 +26,7 @@
   },
   "scripts": {
     "prebuild": "rimraf dist ./*.tgz",
-    "build": "rollup -c --bundleConfigAsCjs",
+    "build": "rollup -c",
     "build:cjs": "tsc --project tsconfig.cjs.json",
     "build:esm": "tsc --project tsconfig.esm.json",
     "postbuild": "pnpm pack",
diff --git a/packages/x-archetype-utils/rollup.config.js b/packages/x-archetype-utils/rollup.config.mjs
similarity index 100%
rename from packages/x-archetype-utils/rollup.config.js
rename to packages/x-archetype-utils/rollup.config.mjs
diff --git a/packages/x-types/package.json b/packages/x-types/package.json
index 12445adec8..c1c51a778f 100644
--- a/packages/x-types/package.json
+++ b/packages/x-types/package.json
@@ -28,8 +28,8 @@
     "node": ">=18"
   },
   "scripts": {
-    "build": "rollup -c --bundleConfigAsCjs && npm run gen:docs",
-    "build:watch": "rollup -c --bundleConfigAsCjs -w",
+    "build": "rollup -c && npm run gen:docs",
+    "build:watch": "rollup -c -w",
     "gen:model-docs": "api-extractor run -c x-types-extractor.json -l && api-extractor run -c schema-extractor.json -l && api-extractor run -l",
     "gen:typescript-docs": "api-documenter markdown -i report -o docs",
     "gen:docs": "npm run gen:model-docs && npm run gen:typescript-docs",
diff --git a/packages/x-types/rollup.config.js b/packages/x-types/rollup.config.mjs
similarity index 100%
rename from packages/x-types/rollup.config.js
rename to packages/x-types/rollup.config.mjs