diff --git a/.changeset/thirty-pans-hammer.md b/.changeset/thirty-pans-hammer.md
new file mode 100644
index 0000000000..6ccec0373e
--- /dev/null
+++ b/.changeset/thirty-pans-hammer.md
@@ -0,0 +1,6 @@
+---
+"@khanacademy/perseus": patch
+"@khanacademy/perseus-editor": patch
+---
+
+Add save warnings to PhET widget editor