diff --git a/.changeset/fluffy-rocks-fold.md b/.changeset/fluffy-rocks-fold.md
new file mode 100644
index 000000000..51da97f32
--- /dev/null
+++ b/.changeset/fluffy-rocks-fold.md
@@ -0,0 +1,5 @@
+---
+"astro": patch
+---
+
+Add `<guid>` to RSS feed.