diff --git a/src/doc/book b/src/doc/book
index f1e5ad844d0..aa5ee485bd6 160000
--- a/src/doc/book
+++ b/src/doc/book
@@ -1 +1 @@
-Subproject commit f1e5ad844d0c61738006cdef26227beeb136948e
+Subproject commit aa5ee485bd6bd80d205da7c82fcdd776f92fdd51
diff --git a/src/doc/reference b/src/doc/reference
index f6ed74f582b..4ea7c5def38 160000
--- a/src/doc/reference
+++ b/src/doc/reference
@@ -1 +1 @@
-Subproject commit f6ed74f582bddcec73f753eafaab3749c4f7df61
+Subproject commit 4ea7c5def38ac81df33a9e48e5637a82a5ac404d
diff --git a/src/doc/rust-by-example b/src/doc/rust-by-example
index 5e7b296d6c3..03491f33375 160000
--- a/src/doc/rust-by-example
+++ b/src/doc/rust-by-example
@@ -1 +1 @@
-Subproject commit 5e7b296d6c345addbd748f242aae28c42555c015
+Subproject commit 03491f33375c5a2a1661c7fa4be671fe95ce1249
diff --git a/src/doc/rustc-dev-guide b/src/doc/rustc-dev-guide
index 7518c3445dc..51a37ad19a1 160000
--- a/src/doc/rustc-dev-guide
+++ b/src/doc/rustc-dev-guide
@@ -1 +1 @@
-Subproject commit 7518c3445dc02df0d196f5f84e568d633c5141fb
+Subproject commit 51a37ad19a15709d0601afbac6581f5aea6a45da