diff --git a/src/doc/book b/src/doc/book
index e2fa4316c5a7c..d4d2c18cbd208 160000
--- a/src/doc/book
+++ b/src/doc/book
@@ -1 +1 @@
-Subproject commit e2fa4316c5a7c0d2499c5d6b799adcfad6ef7a45
+Subproject commit d4d2c18cbd20876b2130a546e790446a8444cb32
diff --git a/src/doc/reference b/src/doc/reference
index de2d5289e4550..6195dbd70fc6f 160000
--- a/src/doc/reference
+++ b/src/doc/reference
@@ -1 +1 @@
-Subproject commit de2d5289e45506b11dd652bef4f99de64be70e1c
+Subproject commit 6195dbd70fc6f0980c314b4d23875ac570d8253a