diff --git a/.changeset/cyan-taxis-help.md b/.changeset/cyan-taxis-help.md
new file mode 100644
index 000000000..1997eb949
--- /dev/null
+++ b/.changeset/cyan-taxis-help.md
@@ -0,0 +1,7 @@
+---
+'@myst-theme/providers': patch
+'@myst-theme/site': patch
+'@myst-theme/book': patch
+---
+
+Grow TOC on narrow screens