diff --git a/requirements.txt b/requirements.txt
index d405218..2854067 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ Flask==1.0
 msgpack_python==0.5.6
 psutil
 future
-waitress==1.4.3
+waitress==2.1.1
 importlib_resources
 nbt==1.5.0
 humanize==2.6.0