diff --git a/packages/core/rslib.config.ts b/packages/core/rslib.config.ts
index 62045ba95c..cdd565050a 100644
--- a/packages/core/rslib.config.ts
+++ b/packages/core/rslib.config.ts
@@ -91,6 +91,9 @@ export default defineConfig({
     {
       id: 'esm_index',
       format: 'esm',
+      experiments: {
+        advancedEsm: true,
+      },
       syntax: 'es2022',
       plugins: [pluginFixDtsTypes],
       dts: {
@@ -111,6 +114,9 @@ export default defineConfig({
     {
       id: 'esm_loaders',
       format: 'esm',
+      experiments: {
+        advancedEsm: true,
+      },
       syntax: 'es2022',
       source: {
         entry: {
@@ -142,6 +148,9 @@ export default defineConfig({
     {
       id: 'esm_client',
       format: 'esm',
+      experiments: {
+        advancedEsm: true,
+      },
       syntax: 'es2017',
       source: {
         entry: {