diff --git a/pkgs/development/python-modules/cssutils/default.nix b/pkgs/development/python-modules/cssutils/default.nix
index 1cc7266a5e85..9d38d4398146 100644
--- a/pkgs/development/python-modules/cssutils/default.nix
+++ b/pkgs/development/python-modules/cssutils/default.nix
@@ -3,6 +3,7 @@
   buildPythonPackage,
   fetchFromGitHub,
   setuptools-scm,
+  encutils,
   more-itertools,
   cssselect,
   jaraco-test,
@@ -13,19 +14,27 @@
 
 buildPythonPackage rec {
   pname = "cssutils";
-  version = "2.11.1";
+  version = "2.14.0";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "jaraco";
     repo = "cssutils";
     tag = "v${version}";
-    hash = "sha256-U9myMfKz1HpYVJXp85izRBpm2wjLHYZj8bUVt3ROTEg=";
+    hash = "sha256-kuqHfwJn+GT1VIC2PWu5Oj1X6SGn/bi2QPN8kfposVs=";
   };
 
+  postPatch = ''
+    substituteInPlace pyproject.toml \
+      --replace-fail '"coherent.licensed",' ""
+  '';
+
   build-system = [ setuptools-scm ];
 
-  dependencies = [ more-itertools ];
+  dependencies = [
+    encutils
+    more-itertools
+  ];
 
   nativeCheckInputs = [
     cssselect
@@ -37,7 +46,6 @@ buildPythonPackage rec {
 
   disabledTests = [
     # access network
-    "encutils"
     "website.logging"
   ];
 
diff --git a/pkgs/development/python-modules/encutils/default.nix b/pkgs/development/python-modules/encutils/default.nix
new file mode 100644
index 000000000000..37f91db5a007
--- /dev/null
+++ b/pkgs/development/python-modules/encutils/default.nix
@@ -0,0 +1,39 @@
+{
+  buildPythonPackage,
+  chardet,
+  fetchPypi,
+  flit-core,
+  lib,
+  pytestCheckHook,
+}:
+
+buildPythonPackage (finalAttrs: {
+  pname = "encutils";
+  version = "1.0.0";
+  pyproject = true;
+
+  # pyproject.toml on GitHub uses coherent.build as build-system
+  src = fetchPypi {
+    inherit (finalAttrs) pname version;
+    hash = "sha256-OOylrxjOur2L5DwX8UydP7uoPMX3rI46schuJMSyuRo=";
+  };
+
+  build-system = [ flit-core ];
+
+  dependencies = [
+    chardet
+  ];
+
+  pythonImportsCheck = [ "encutils" ];
+
+  nativeCheckInputs = [
+    pytestCheckHook
+  ];
+
+  meta = {
+    description = "Collection of helper functions to detect encodings of text files";
+    homepage = "https://github.com/coherent-oss/encutils";
+    license = lib.licenses.lgpl3Plus;
+    maintainers = [ lib.maintainers.dotlambda ];
+  };
+})
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 70b29fde8d70..f4e952aff467 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -5016,6 +5016,8 @@ self: super: with self; {
 
   encodec = callPackage ../development/python-modules/encodec { };
 
+  encutils = callPackage ../development/python-modules/encutils { };
+
   energyflip-client = callPackage ../development/python-modules/energyflip-client { };
 
   energyflow = callPackage ../development/python-modules/energyflow { };