diff --git a/requirements.txt b/requirements.txt
index a505dd8..fcb6ba4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,3 +5,5 @@ python-decouple==3.1
 pycodestyle==2.4.0
 ipdb==0.11
 boto3==1.9.62
+notebook>=6.1.5 # not directly required, pinned by Snyk to avoid a vulnerability
+pygments>=2.7.4 # not directly required, pinned by Snyk to avoid a vulnerability