diff --git a/src/doc/book b/src/doc/book
index 3dca2fc50b922..5b6c1ceaa62ec 160000
--- a/src/doc/book
+++ b/src/doc/book
@@ -1 +1 @@
-Subproject commit 3dca2fc50b922a8efb94903b9fee8bb42ab48f38
+Subproject commit 5b6c1ceaa62ecbd6caef08df39b33b3938e99deb