diff --git a/requirements.txt b/requirements.txt
index cfd292c..727891e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -19,7 +19,7 @@ Mako==1.1.3
 MarkupSafe==1.1.1
 mccabe==0.6.1
 openpyxl==3.0.5
-waitress==1.4.4
+waitress==2.1.1
 psycopg2-binary==2.9.1
 python-dateutil==2.8.1
 python-dotenv==0.14.0
@@ -29,7 +29,7 @@ six==1.15.0
 soupsieve==2.0.1
 toml==0.10.1
 urllib3==1.26.5
-waitress==1.4.4
+waitress==2.1.1
 Werkzeug==1.0.1
 wrapt==1.12.1
 xlrd==1.2.0