diff --git a/src/doc/book b/src/doc/book
index f475da63a18..88cdde350fd 160000
--- a/src/doc/book
+++ b/src/doc/book
@@ -1 +1 @@
-Subproject commit f475da63a18d50217459a601cbef69a4bcac5e71
+Subproject commit 88cdde350fd3a90c93f3bac8b4f168f105d28060
diff --git a/src/doc/nomicon b/src/doc/nomicon
index 66ef7373409..790e96b87f4 160000
--- a/src/doc/nomicon
+++ b/src/doc/nomicon
@@ -1 +1 @@
-Subproject commit 66ef7373409d1979c2839db8886ac2ec9b6a58cd
+Subproject commit 790e96b87f4b5817cac310e73a524d25c3d076d8
diff --git a/src/doc/rust-by-example b/src/doc/rust-by-example
index d2a64395a52..e3719fc78ff 160000
--- a/src/doc/rust-by-example
+++ b/src/doc/rust-by-example
@@ -1 +1 @@
-Subproject commit d2a64395a5210a61d3512a3a5c615f5c47699443
+Subproject commit e3719fc78ff4a21dfd13cfcc9e2ca42cb5de29f4