diff --git a/src/doc/book b/src/doc/book
index 0510ca84c2c..c06006157b1 160000
--- a/src/doc/book
+++ b/src/doc/book
@@ -1 +1 @@
-Subproject commit 0510ca84c2ce6bf93c4ccf9248756e9e4fd00b12
+Subproject commit c06006157b14b3d47b5c716fc392b77f3b2e21ce
diff --git a/src/doc/reference b/src/doc/reference
index 3c47807a313..1f8dc727e94 160000
--- a/src/doc/reference
+++ b/src/doc/reference
@@ -1 +1 @@
-Subproject commit 3c47807a3131b3c7cacb508f52632078d253cd0a
+Subproject commit 1f8dc727e94ae4ef92adf70df979521a1ea1143e
diff --git a/src/doc/rust-by-example b/src/doc/rust-by-example
index ba84bf35d0f..31961fe2252 160000
--- a/src/doc/rust-by-example
+++ b/src/doc/rust-by-example
@@ -1 +1 @@
-Subproject commit ba84bf35d0f17d404003349309201654d25f61af
+Subproject commit 31961fe22521a779070a44a8f30a2b00a20b6212
diff --git a/src/doc/rustc-dev-guide b/src/doc/rustc-dev-guide
index fca8af6c154..6337ed17fb8 160000
--- a/src/doc/rustc-dev-guide
+++ b/src/doc/rustc-dev-guide
@@ -1 +1 @@
-Subproject commit fca8af6c154c6cde2512f1331cf2704f214a818e
+Subproject commit 6337ed17fb8dcd918d78b7d97d213e923530337c