diff --git a/.changeset/strange-shrimps-accept.md b/.changeset/strange-shrimps-accept.md
new file mode 100644
index 0000000000000..a43fdf0c56f13
--- /dev/null
+++ b/.changeset/strange-shrimps-accept.md
@@ -0,0 +1,5 @@
+---
+'@astrojs/sitemap': major
+---
+
+add separator option