diff --git a/book/external/Nested-Books b/book/external/Nested-Books
index 0274cf7..a98345b 160000
--- a/book/external/Nested-Books
+++ b/book/external/Nested-Books
@@ -1 +1 @@
-Subproject commit 0274cf7cce4e0ff084de4b131d5b3b30c3a697c0
+Subproject commit a98345bafa00136601f19179c90957c8fcbdfe0b