diff --git a/flask/requirements.txt b/flask/requirements.txt
index c30c2b4..c0bb6a4 100644
--- a/flask/requirements.txt
+++ b/flask/requirements.txt
@@ -17,7 +17,7 @@ numpy==1.17.0
 packaging==19.1
 pandas==0.25.0
 param==1.9.1
-Pillow==6.1.0
+Pillow==9.3.0
 pkg-resources==0.0.0
 psycopg2==2.8.3
 pycparser==2.19