diff --git a/app_factory_pattern/requirements.txt b/app_factory_pattern/requirements.txt
index 9dafef3..0f7f35e 100644
--- a/app_factory_pattern/requirements.txt
+++ b/app_factory_pattern/requirements.txt
@@ -1,2 +1,3 @@
 Flask>=1.0.2
-environs
\ No newline at end of file
+environs
+werkzeug>=3.1.4 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file