diff --git a/src/doc/book b/src/doc/book
index 04bc1396bb8..e7d217be2a7 160000
--- a/src/doc/book
+++ b/src/doc/book
@@ -1 +1 @@
-Subproject commit 04bc1396bb857f35b5dda1d773c9571e1f253304
+Subproject commit e7d217be2a75ef1753f0988d6ccaba4d7e376259
diff --git a/src/doc/edition-guide b/src/doc/edition-guide
index aeeb287d41a..eeba2cb9c37 160000
--- a/src/doc/edition-guide
+++ b/src/doc/edition-guide
@@ -1 +1 @@
-Subproject commit aeeb287d41a0332c210da122bea8e0e91844ab3e
+Subproject commit eeba2cb9c37ab74118a4fb5e5233f7397e4a91f8
diff --git a/src/doc/embedded-book b/src/doc/embedded-book
index 019f3928d8b..ff5d61d56f1 160000
--- a/src/doc/embedded-book
+++ b/src/doc/embedded-book
@@ -1 +1 @@
-Subproject commit 019f3928d8b939ec71b63722dcc2e46330156441
+Subproject commit ff5d61d56f11e1986bfa9652c6aff7731576c37d
diff --git a/src/doc/nomicon b/src/doc/nomicon
index 6ecf95c5f2b..14649f15d23 160000
--- a/src/doc/nomicon
+++ b/src/doc/nomicon
@@ -1 +1 @@
-Subproject commit 6ecf95c5f2bfa0e6314dfe282bf775fd1405f7e9
+Subproject commit 14649f15d232d509478206ee9ed5105641aa60d0
diff --git a/src/doc/reference b/src/doc/reference
index 62cd0df9506..0668397076d 160000
--- a/src/doc/reference
+++ b/src/doc/reference
@@ -1 +1 @@
-Subproject commit 62cd0df95061ba0ac886333f5cd7f3012f149da1
+Subproject commit 0668397076da350c404dadcf07b6cbc433ad3743
diff --git a/src/doc/rust-by-example b/src/doc/rust-by-example
index 8f94061936e..859786c5bc9 160000
--- a/src/doc/rust-by-example
+++ b/src/doc/rust-by-example
@@ -1 +1 @@
-Subproject commit 8f94061936e492159f4f6c09c0f917a7521893ff
+Subproject commit 859786c5bc99301bbc22fc631a5c2b341860da08
diff --git a/src/doc/rustc-dev-guide b/src/doc/rustc-dev-guide
index 43d83780db5..fa928a6d19e 160000
--- a/src/doc/rustc-dev-guide
+++ b/src/doc/rustc-dev-guide
@@ -1 +1 @@
-Subproject commit 43d83780db545a1ed6d45773312fc578987e3968
+Subproject commit fa928a6d19e1666d8d811dfe3fd35cdad3b4e459
diff --git a/src/tools/rustbook/Cargo.lock b/src/tools/rustbook/Cargo.lock
index 3b859fe98c5..1394675a9dc 100644
--- a/src/tools/rustbook/Cargo.lock
+++ b/src/tools/rustbook/Cargo.lock
@@ -690,6 +690,7 @@ dependencies = [
  "mdbook",
  "once_cell",
  "pathdiff",
+ "pulldown-cmark",
  "regex",
  "semver",
  "serde_json",