diff --git a/app/requirements.txt b/app/requirements.txt
index fedbe58..060617d 100644
--- a/app/requirements.txt
+++ b/app/requirements.txt
@@ -3,3 +3,4 @@ numpy==1.16.3
 opencv-python>=4.0.1.23
 Pillow==8.3.2
 redis==3.2.1
+werkzeug>=3.0.1 # not directly required, pinned by Snyk to avoid a vulnerability