diff --git a/.changeset/famous-kings-develop.md b/.changeset/famous-kings-develop.md
new file mode 100644
index 0000000000000000000000000000000000000000..8a596f814adf5d8258ea004c4e18c7da4bb29a37
--- /dev/null
+++ b/.changeset/famous-kings-develop.md
@@ -0,0 +1,5 @@
+---
+"@llamaindex/env": patch
+---
+
+fix(env): no esm shim
diff --git a/packages/env/src/index.ts b/packages/env/src/index.ts
index 089d74378b23a43e9b60f6fcc376a775bbd2d5aa..a1233b171be2b6bcbf9faac01c90b5330c09cd6f 100644
--- a/packages/env/src/index.ts
+++ b/packages/env/src/index.ts
@@ -11,6 +11,7 @@
  *
  * @module
  */
+/** rollup-private-do-not-use-esm-shim-polyfill */
 import { ok } from "node:assert";
 import { createHash, randomUUID } from "node:crypto";
 import { EOL } from "node:os";