diff --git a/lectures b/lectures
index 456084d..2b1085b 160000
--- a/lectures
+++ b/lectures
@@ -1 +1 @@
-Subproject commit 456084daa65cd8b364c22341587fbee8e91d531b
+Subproject commit 2b1085b8534f18f3d00623a1ae2674d7efea25be