diff --git a/requirements.txt b/requirements.txt
index 8fba072..e42edf3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,7 +25,7 @@ six==1.11.0
 ujson==1.35
 urllib3==1.24.2
 uvloop==0.11.2
-waitress==1.4.0
+waitress==1.4.1
 WebOb==1.8.2
 websockets==5.0.1
 WebTest==2.0.30