diff --git a/src/doc/book b/src/doc/book
index d207d894cc5..bebcf527e67 160000
--- a/src/doc/book
+++ b/src/doc/book
@@ -1 +1 @@
-Subproject commit d207d894cc5e1d496ab99beeacd1a420e5d4d238
+Subproject commit bebcf527e67755a989a1739b7cfaa8f0e6b30040
diff --git a/src/doc/embedded-book b/src/doc/embedded-book
index aa7d4b0b465..17842ebb050 160000
--- a/src/doc/embedded-book
+++ b/src/doc/embedded-book
@@ -1 +1 @@
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+Subproject commit 17842ebb050f62e40a4618edeb8e8ee86e758707
diff --git a/src/doc/reference b/src/doc/reference
index 5854fcc2865..51817951d0d 160000
--- a/src/doc/reference
+++ b/src/doc/reference
@@ -1 +1 @@
-Subproject commit 5854fcc286557ad3ab34d325073d11d8118096b6
+Subproject commit 51817951d0d213a0011f82b62aae02c3b3f2472e
diff --git a/src/doc/rust-by-example b/src/doc/rust-by-example
index 60d34b5fd33..229ad13b64d 160000
--- a/src/doc/rust-by-example
+++ b/src/doc/rust-by-example
@@ -1 +1 @@
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+Subproject commit 229ad13b64d919b12e548d560f06d88963b25cd3
diff --git a/src/doc/rustc-dev-guide b/src/doc/rustc-dev-guide
index 07425fed36b..2d1947ff34d 160000
--- a/src/doc/rustc-dev-guide
+++ b/src/doc/rustc-dev-guide
@@ -1 +1 @@
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+Subproject commit 2d1947ff34d50ca46dfe242ad75531a4c429bb52