diff --git a/requirements.txt b/requirements.txt
index dbe063ab..6b62b581 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,4 +10,6 @@ streamlit
 geos
 numba
 watchdog
-pvlib
\ No newline at end of file
+pvlib
+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