diff --git a/requirements.txt b/requirements.txt
index d16ab6d..86aba2a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -19,6 +19,6 @@ six==1.14.0
 sqlparse==0.3.1
 termcolor==1.1.0
 thrift==0.13.0
-waitress==1.4.3
+waitress==2.1.1
 Werkzeug==1.0.1
 wrapt==1.12.1