diff --git a/requirements.txt b/requirements.txt
index 411cb41..81d160e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -88,7 +88,7 @@ validate-email==1.3
 vine==1.3.0
 wcwidth==0.1.7
 whitenoise==4.1.2
-waitress==1.4.3
+waitress==2.1.1
 factory-boy==2.12.0
 
 # Debug query counts