diff --git a/.changeset/toc-stable-group-state.md b/.changeset/toc-stable-group-state.md
new file mode 100644
index 000000000..5f097a3aa
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+++ b/.changeset/toc-stable-group-state.md
@@ -0,0 +1,5 @@
+---
+"gitbook": patch
+---
+
+Fix the table-of-contents feeling unstable: sidebar groups no longer expand/collapse or lose their expanded context when navigating between pages.