diff --git a/webService/requirements.txt b/webService/requirements.txt
index eb15436..74a1b8d 100644
--- a/webService/requirements.txt
+++ b/webService/requirements.txt
@@ -11,7 +11,7 @@ MarkupSafe==1.0
 nose==1.3.7
 numpy==1.13.3
 olefile==0.44
-Pillow==4.3.0
+Pillow==9.3.0
 scipy==1.0.0
 six==1.11.0
 Werkzeug==0.12.2