diff --git a/books/beaglebone-cookbook/code b/books/beaglebone-cookbook/code
index beaf00459d64fda366e7ff3286124955f2985c62..ba615b3a1e8de7f99345817225c491e05151d454 160000
--- a/books/beaglebone-cookbook/code
+++ b/books/beaglebone-cookbook/code
@@ -1 +1 @@
-Subproject commit beaf00459d64fda366e7ff3286124955f2985c62
+Subproject commit ba615b3a1e8de7f99345817225c491e05151d454