diff --git a/.changeset/twenty-hounds-smile.md b/.changeset/twenty-hounds-smile.md
new file mode 100644
index 000000000..0c733897c
--- /dev/null
+++ b/.changeset/twenty-hounds-smile.md
@@ -0,0 +1,5 @@
+---
+'@myst-theme/jupyter': patch
+---
+
+Always allow `thebe` options to be overridden, even when no key defined in frontmatter.