diff --git a/docs/notebooks b/docs/notebooks
index 6ca80f0a..21c4b9a1 160000
--- a/docs/notebooks
+++ b/docs/notebooks
@@ -1 +1 @@
-Subproject commit 6ca80f0a79534c52d3458b37b0cd15d5bf418d02
+Subproject commit 21c4b9a177244ace009ebf537d8e72272c18544c