diff --git a/requirements.txt b/requirements.txt
index 31abce2..4b8340e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -31,7 +31,7 @@ translationstring==1.3
 ujson==1.35
 urllib3==1.24.2
 venusian==1.2.0
-waitress==1.2.1
+waitress==1.3.0
 WebOb==1.8.5
 zope.deprecation==4.4.0
 zope.interface==4.6.0