diff --git a/requirements.txt b/requirements.txt
index 92e35d3..d794812 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,4 +7,6 @@ matplotlib
 mpl-finance
 scikit-learn
 seaborn
-v20
\ No newline at end of file
+v20
+fonttools>=4.61.0 # not directly required, pinned by Snyk to avoid a vulnerability
+tornado>=6.5.3 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file