diff --git a/book/external/Nested-Books b/book/external/Nested-Books
index f063877..94d5835 160000
--- a/book/external/Nested-Books
+++ b/book/external/Nested-Books
@@ -1 +1 @@
-Subproject commit f063877cc9efa7bd1d14eab0cba71f50e4aeb957
+Subproject commit 94d583570178ede097f8216b2aa06996d6e4b9ee
diff --git a/book/features/update_env.md b/book/features/update_env.md
index ad4096b..442512a 100644
--- a/book/features/update_env.md
+++ b/book/features/update_env.md
@@ -1,5 +1,10 @@
 # Auto-updating packages
 
+```{admonition} User types
+:class: tip
+This page is useful for user type 4-5.
+```
+
 {bdg-dark}`Git Workflow`
 
 When building your book, your making use of packages: the teachbooks and jupyterbook packages themselves, but also packages for extensions. These are regularly updated, while those updates are not necessarily taken into your book. This is all defined in the `requirements.txt` file, which is provided as part of the [template](../external/template/README.md). There are three options: