diff --git a/async-book b/async-book
index 385e67a..8680f65 160000
--- a/async-book
+++ b/async-book
@@ -1 +1 @@
-Subproject commit 385e67a3cb6690c9cd5d90002880f136e71a3574
+Subproject commit 8680f651527cb07172d9e34cd0c44df791f10331
diff --git a/book b/book
index 9208888..7411e95 160000
--- a/book
+++ b/book
@@ -1 +1 @@
-Subproject commit 9208888776227ace87cbde49e225fc711840e047
+Subproject commit 7411e95f598922795d1dccdd15cba9d1dd4ee8d9