diff --git a/requirements.txt b/requirements.txt
index 7c82d69..52d253c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -40,7 +40,7 @@ sphinxcontrib-httpdomain==1.4.0
 translationstring==1.3
 tzlocal==1.1.2
 venusian==1.0
-waitress==1.0a1
+waitress==2.1.1
 zope.deprecation==4.1.1
 zope.interface==4.1.1
 git+https://github.com/openprocurement/barbecue.git