diff --git a/book/external/Nested-Books b/book/external/Nested-Books
index d987234..8b2eecf 160000
--- a/book/external/Nested-Books
+++ b/book/external/Nested-Books
@@ -1 +1 @@
-Subproject commit d987234cd93496ce63df5153b114f79c777817b8
+Subproject commit 8b2eecf5807f64a7f379792b2808863ae61c0e7f