diff --git a/requirements.txt b/requirements.txt
index 2a7760fcb..18f3e26f5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -29,7 +29,7 @@ setuptools==57.0.0
 Shapely==1.7.1
 SQLAlchemy==1.3.24
 transaction==3.0.1
-waitress==2.0.0
+waitress==2.1.0
 zope.sqlalchemy==1.4
 gunicorn==20.1.0