diff --git a/source/notebooks/requirements.txt b/source/notebooks/requirements.txt
index 21078d9..2401c57 100644
--- a/source/notebooks/requirements.txt
+++ b/source/notebooks/requirements.txt
@@ -131,7 +131,7 @@ python-dateutil==2.8.1
     #   pandas
 pytz==2020.4
     # via pandas
-pyyaml==5.3.1
+pyyaml==5.4
     # via
     #   awscli
     #   papermill