diff --git a/pkgs/development/python-modules/cssutils/default.nix b/pkgs/development/python-modules/cssutils/default.nix
index 0cb99dfee1c6..4bac08d665d6 100644
--- a/pkgs/development/python-modules/cssutils/default.nix
+++ b/pkgs/development/python-modules/cssutils/default.nix
@@ -17,7 +17,7 @@
 
 buildPythonPackage rec {
   pname = "cssutils";
-  version = "2.5.1";
+  version = "2.6.0";
 
   disabled = pythonOlder "3.7";
 
@@ -25,7 +25,7 @@ buildPythonPackage rec {
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-tKTaWOeDJuyfSp01VQBN33BvPpn3oQJsGIDwk0NiuLQ=";
+    hash = "sha256-99zSPBzskJ/fNjDeNG4UE7eyVVk23sFLouu5kTvwgY4=";
   };
 
   nativeBuildInputs = [