diff --git a/book/_toc.yml b/book/_toc.yml
index 504fd06..16d456e 100644
--- a/book/_toc.yml
+++ b/book/_toc.yml
@@ -47,8 +47,8 @@ parts:
       - file: features/custom_toc.md
       - file: features/custom_download.md
       - file: external/Nested-Books/README.md
-      - file: features/interactive_element.ipynb
       - file: external/Sphinx-Image-Inverter/README.md
+      - file: features/interactive_element.ipynb
         sections:
         - file: features/grasple.md
         - file: features/h5p.md