diff --git a/requirements.txt b/requirements.txt
index 25161c09..58f723da 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -18,3 +18,5 @@ jsonpath_rw
 bottleneck<=1.3.6
 matplotlib>3.9
 seaborn>0.13
+fonttools>=4.43.0 # not directly required, pinned by Snyk to avoid a vulnerability
+pillow>=10.3.0 # not directly required, pinned by Snyk to avoid a vulnerability