diff --git a/requirements.txt b/requirements.txt
index 3250c2d..10b2fe6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -18,7 +18,7 @@ Pillow==6.1.0
 pycparser==2.19
 six==1.12.0
 SQLAlchemy==1.3.5
-waitress==1.3.0
+waitress==1.4.1
 Werkzeug==0.15.4
 wincertstore==0.2
 WTForms==2.2.1