diff --git a/src/doc/book b/src/doc/book
index f5db319e0b1..e37c0e84e2e 160000
--- a/src/doc/book
+++ b/src/doc/book
@@ -1 +1 @@
-Subproject commit f5db319e0b19c22964398d56bc63103d669e1bba
+Subproject commit e37c0e84e2ef73d3a4ebffda8011db6814a3b02d
diff --git a/src/doc/embedded-book b/src/doc/embedded-book
index 668fb07b616..40beccdf1bb 160000
--- a/src/doc/embedded-book
+++ b/src/doc/embedded-book
@@ -1 +1 @@
-Subproject commit 668fb07b6160b9c468f598e839c1e044db65de30
+Subproject commit 40beccdf1bb8eb9184a2e3b42db8b8c6e394247f
diff --git a/src/doc/nomicon b/src/doc/nomicon
index 6eb24d6e9c0..4d2d2759977 160000
--- a/src/doc/nomicon
+++ b/src/doc/nomicon
@@ -1 +1 @@
-Subproject commit 6eb24d6e9c0773d4aee68ed5fca121ce3cdf676a
+Subproject commit 4d2d275997746d35eabfc4d992dfbdcce2f626ed
diff --git a/src/doc/reference b/src/doc/reference
index 3ce94caed4c..ed22e6fbfcb 160000
--- a/src/doc/reference
+++ b/src/doc/reference
@@ -1 +1 @@
-Subproject commit 3ce94caed4cf967106c51ae86be5e098f7875f11
+Subproject commit ed22e6fbfcb6ce436e9ea3b4bb4a55b2fb50a57e
diff --git a/src/doc/rust-by-example b/src/doc/rust-by-example
index c106d1683c3..ffc99581689 160000
--- a/src/doc/rust-by-example
+++ b/src/doc/rust-by-example
@@ -1 +1 @@
-Subproject commit c106d1683c3a2b0960f0f0fb01728cbb19807332
+Subproject commit ffc99581689fe2455908aaef5f5cf50dd03bb8f5