diff --git a/book/external/Nested-Books b/book/external/Nested-Books
index b5c1bf9..f01b079 160000
--- a/book/external/Nested-Books
+++ b/book/external/Nested-Books
@@ -1 +1 @@
-Subproject commit b5c1bf9ca8f741de07a24eb4990f2a7f266244b7
+Subproject commit f01b079269f43edb557c4551805e46b1430e9d71