diff --git a/requirements.txt b/requirements.txt
index 6b56b46..1f68cf0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,6 +25,6 @@ sqlparse==0.3.0
 tabulate==0.8.5
 terminaltables==3.1.0
 urllib3==1.25.6
-waitress==1.3.1
+waitress==2.1.1
 wcwidth==0.1.7
 Werkzeug==0.16.0