diff --git a/examples/receiver/requirements.txt b/examples/receiver/requirements.txt
index e1b18c8..fec844b 100644
--- a/examples/receiver/requirements.txt
+++ b/examples/receiver/requirements.txt
@@ -2,4 +2,5 @@ jwcrypto==1.0
 PyJWT==2.4.0
 requests==2.26.0
 typing-extensions==3.10.0.2
+Werkzeug==2.2.2
 Flask==2.0.2