diff --git a/requirements.txt b/requirements.txt
index 8718496..ab96850 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ pyramid==1.10.4
 plaster-pastedeploy==0.7
 pyramid_chameleon==0.3
 pyramid_debugtoolbar==4.6.1
-waitress==2.1.1
+waitress==2.1.2
 cookiecutter==1.7.0
 sqlalchemy==1.3.13
 python-dateutil==2.8.1