diff --git a/app/requirements.txt b/app/requirements.txt
index e057829..f249ee4 100644
--- a/app/requirements.txt
+++ b/app/requirements.txt
@@ -45,5 +45,5 @@ singledispatch==3.4.0.3
 six==1.12.0
 SQLAlchemy==1.2.15
 urllib3==1.26.5
-waitress==1.1.0
+waitress==1.4.3
 Werkzeug==0.14.1