diff --git a/requirements.txt b/requirements.txt
index 4a21023..85ce47d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -38,5 +38,5 @@ stripe==1.62.1
 update==0.4.4
 urllib3==1.22
 vine==1.1.4
-waitress==0.9.0
+waitress==1.4.0
 wheel==0.29.0