diff --git a/pkgs/development/python-modules/tox/default.nix b/pkgs/development/python-modules/tox/default.nix
index 0427ed68a800..93be8bfdb688 100644
--- a/pkgs/development/python-modules/tox/default.nix
+++ b/pkgs/development/python-modules/tox/default.nix
@@ -24,14 +24,14 @@
 
 buildPythonPackage rec {
   pname = "tox";
-  version = "4.26.0";
+  version = "4.28.4";
   format = "pyproject";
 
   src = fetchFromGitHub {
     owner = "tox-dev";
     repo = "tox";
     tag = version;
-    hash = "sha256-VySdeZDC71vi2mOtjdFJ4iCSpWbFEW3nzrVucPUz/oc=";
+    hash = "sha256-EKJsFf4LvfDi3OL6iNhKEBl5zlpdLET9RkfHEP7E9xU=";
   };
 
   postPatch = ''