diff --git a/requirements.txt b/requirements.txt
index 4d7a35d0db..d71d6a1508 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -19,6 +19,6 @@ simplejson==3.17.2
 six==1.16.0
 sklearn==0.0
 threadpoolctl==2.1.0
-waitress==2.0.0
+waitress==2.1.1
 watchdog==2.1.2
 Werkzeug==2.0.1