diff --git a/book/external/TeachBooks b/book/external/TeachBooks
index 1beb447..209dc7c 160000
--- a/book/external/TeachBooks
+++ b/book/external/TeachBooks
@@ -1 +1 @@
-Subproject commit 1beb4478a5f7df378d99f19e651f41d85fd7961c
+Subproject commit 209dc7ceae034edd8ab43c0377e77466fdf15f1c
diff --git a/book/external/annotater b/book/external/annotater
index 22d2efa..df36ccf 160000
--- a/book/external/annotater
+++ b/book/external/annotater
@@ -1 +1 @@
-Subproject commit 22d2efac5bf175f8173b9accae21e7270c977b03
+Subproject commit df36ccffd4a980d97e90f667c5d5e6bdd941fdbd
diff --git a/book/external/deploy-book-workflow b/book/external/deploy-book-workflow
index 7f60d58..f7e24bb 160000
--- a/book/external/deploy-book-workflow
+++ b/book/external/deploy-book-workflow
@@ -1 +1 @@
-Subproject commit 7f60d58a63b69192e998781d0dee43d1ccb0b2fe
+Subproject commit f7e24bb274a0ba7046505ddffc3733ad1e28b6b6