diff --git a/requirements.txt b/requirements.txt
index 9f9479f..504573b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,4 +24,5 @@ sklearn==0.0
 threadpoolctl==2.1.0
 visitor==0.1.3
 Werkzeug==0.14
-Flask-WTF
\ No newline at end of file
+Flask-WTF
+pillow>=10.3.0 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file