diff --git a/notebooks/COM303 b/notebooks/COM303
index b44dfd3..910bd96 160000
--- a/notebooks/COM303
+++ b/notebooks/COM303
@@ -1 +1 @@
-Subproject commit b44dfd31cb7e90d55f51f551e951d2eff7ae40c7
+Subproject commit 910bd964168b6367e10fa5602cc5720838308d4c
diff --git a/teaching/COM303/2021 b/teaching/COM303/2021
index 1a4ed63..b5f4ab8 160000
--- a/teaching/COM303/2021
+++ b/teaching/COM303/2021
@@ -1 +1 @@
-Subproject commit 1a4ed63e95a7a697deb6ea70e42059bb633581f1
+Subproject commit b5f4ab860c1b032e43c285af4b59caf1fb6a9ab2