diff --git a/lectures b/lectures
index eae6f63..5c7fa31 160000
--- a/lectures
+++ b/lectures
@@ -1 +1 @@
-Subproject commit eae6f634fa2706db8fc6e6d85ef5cf22057e2f73
+Subproject commit 5c7fa313cfd110741c972f43488521d310fb85c9