diff --git a/ale-exercise-book b/ale-exercise-book
index 752650e..9283739 160000
--- a/ale-exercise-book
+++ b/ale-exercise-book
@@ -1 +1 @@
-Subproject commit 752650eaf202bc1641ae93c0bbcbb236d93445ed
+Subproject commit 9283739f54788e71456cc976208eb35742815491