diff --git a/.changeset/perfect-eagles-refuse.md b/.changeset/perfect-eagles-refuse.md
new file mode 100644
index 0000000000000000000000000000000000000000..3a5e01b52c182eaa740cd7b6085c74aca85045f6
--- /dev/null
+++ b/.changeset/perfect-eagles-refuse.md
@@ -0,0 +1,5 @@
+---
+"llamaindex": patch
+---
+
+build: use ESM as default