diff --git a/docs/requirements.txt b/docs/requirements.txt
index 7f5ae89..fb35acc 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -30,6 +30,6 @@ pytz==2019.3
 six==1.13.0
 SQLAlchemy==1.3.12
 SQLAlchemy-Utils==0.34.1
-waitress==1.4.1
+waitress==1.4.2
 Werkzeug==0.16.0
 wincertstore==0.2