diff --git a/requirements.txt b/requirements.txt
index 02564ab..222f14c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 Flask==0.11.*
 requests
-Werkzeug==0.11.*
+Werkzeug==3.0.1*
 privex-exchange>=0.1.0
 privex-helpers>=2.13.0
 nest_asyncio
@@ -8,3 +8,4 @@ jupyter
 python-dotenv
 gunicorn
 
+tornado>=6.3.3 # not directly required, pinned by Snyk to avoid a vulnerability