diff --git a/pkgs/development/python-modules/waitress/default.nix b/pkgs/development/python-modules/waitress/default.nix
index 72da3204a646..3812ed06b60c 100644
--- a/pkgs/development/python-modules/waitress/default.nix
+++ b/pkgs/development/python-modules/waitress/default.nix
@@ -5,11 +5,11 @@
 
 buildPythonPackage rec {
   pname = "waitress";
-  version = "1.3.1";
+  version = "1.4.4";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "278e09d6849acc1365404bbf7d790d0423b159802e850c726e8cd0a126a2dac7";
+    sha256 = "1bb436508a7487ac6cb097ae7a7fe5413aefca610550baf58f0940e51ecfb261";
   };
 
   doCheck = false;