diff --git a/go-ethereum/arbmonmon/requirements.txt b/go-ethereum/arbmonmon/requirements.txt
index 1c5a400..f042b9f 100644
--- a/go-ethereum/arbmonmon/requirements.txt
+++ b/go-ethereum/arbmonmon/requirements.txt
@@ -32,5 +32,5 @@ ssh-import-id==5.5
 ufw==0.35
 unattended-upgrades==0.1
 urllib3==1.13.1
-waitress==1.1.0
+waitress==1.4.2
 Werkzeug==0.14.1