diff --git a/src/doc/book b/src/doc/book
index 230c68bc1e08f..634724ea85ebb 160000
--- a/src/doc/book
+++ b/src/doc/book
@@ -1 +1 @@
-Subproject commit 230c68bc1e08f5f3228384a28cc228c81dfbd10d
+Subproject commit 634724ea85ebb08a542970bf8871ac8b0f77fd15
diff --git a/src/doc/embedded-book b/src/doc/embedded-book
index 0b8219ac23a3e..10fa1e084365f 160000
--- a/src/doc/embedded-book
+++ b/src/doc/embedded-book
@@ -1 +1 @@
-Subproject commit 0b8219ac23a3e09464e4e0166c768cf1c4bba0d5
+Subproject commit 10fa1e084365f23f24ad0000df541923385b73b6
diff --git a/src/doc/nomicon b/src/doc/nomicon
index c76a20f0d9871..8b61acfaea822 160000
--- a/src/doc/nomicon
+++ b/src/doc/nomicon
@@ -1 +1 @@
-Subproject commit c76a20f0d987145dcedf05c5c073ce8d91f2e82a
+Subproject commit 8b61acfaea822e9ac926190bc8f15791c33336e8
diff --git a/src/doc/reference b/src/doc/reference
index 118fd1f1f0854..8e0f593a30f3b 160000
--- a/src/doc/reference
+++ b/src/doc/reference
@@ -1 +1 @@
-Subproject commit 118fd1f1f0854f50e3ae1fe4b64862aad23009ca
+Subproject commit 8e0f593a30f3b56ddb0908fb7ab9249974e08738
diff --git a/src/doc/rust-by-example b/src/doc/rust-by-example
index c9d151f9147c4..21f4e32b8b40d 160000
--- a/src/doc/rust-by-example
+++ b/src/doc/rust-by-example
@@ -1 +1 @@
-Subproject commit c9d151f9147c4808c77f0375ba3fa5d54443cb9e
+Subproject commit 21f4e32b8b40d36453fae16ec07ad4b857c445b6