diff --git a/pkgs/applications/graphics/kcc/default.nix b/pkgs/applications/graphics/kcc/default.nix
deleted file mode 100644
index 4806bfefd9a3d..0000000000000
--- a/pkgs/applications/graphics/kcc/default.nix
+++ /dev/null
@@ -1,48 +0,0 @@
-{
-  lib,
-  python3Packages,
-  fetchPypi,
-  libsForQt5,
-  p7zip,
-  archiveSupport ? true,
-}:
-
-python3Packages.buildPythonApplication rec {
-  pname = "kcc";
-  version = "5.5.1";
-  format = "setuptools";
-
-  src = fetchPypi {
-    inherit version;
-    pname = "KindleComicConverter";
-    sha256 = "5dbee5dc5ee06a07316ae5ebaf21ffa1970094dbae5985ad735e2807ef112644";
-  };
-
-  nativeBuildInputs = [ libsForQt5.wrapQtAppsHook ];
-
-  propagatedBuildInputs = with python3Packages; [
-    pillow
-    pyqt5
-    psutil
-    python-slugify
-    raven
-  ];
-
-  qtWrapperArgs = lib.optionals archiveSupport [
-    "--prefix"
-    "PATH"
-    ":"
-    "${lib.makeBinPath [ p7zip ]}"
-  ];
-
-  postFixup = ''
-    wrapProgram $out/bin/kcc "''${qtWrapperArgs[@]}"
-  '';
-
-  meta = with lib; {
-    description = "Python app to convert comic/manga files or folders to EPUB, Panel View MOBI or E-Ink optimized CBZ";
-    homepage = "https://github.com/ciromattia/kcc";
-    license = licenses.isc;
-    maintainers = with maintainers; [ dawidsowa ];
-  };
-}
diff --git a/pkgs/by-name/kc/kcc/package.nix b/pkgs/by-name/kc/kcc/package.nix
index 9d3eac75c343d..737357e62116d 100644
--- a/pkgs/by-name/kc/kcc/package.nix
+++ b/pkgs/by-name/kc/kcc/package.nix
@@ -1,44 +1,58 @@
 {
-  stdenv,
   lib,
-  qt6,
+  python3,
   fetchFromGitHub,
+
+  qt6,
+  archiveSupport ? true,
   p7zip,
+
   versionCheckHook,
   nix-update-script,
-  python3,
-  archiveSupport ? true,
 }:
+
 python3.pkgs.buildPythonApplication rec {
   pname = "kcc";
-  version = "7.5.1";
-  format = "setuptools";
+  version = "8.0.4";
+  pyproject = true;
 
   src = fetchFromGitHub {
     owner = "ciromattia";
     repo = "kcc";
     tag = "v${version}";
-    hash = "sha256-XB+xss/QiZuo6gWphyjFh9DO74O5tNqfX5LUzsa4gqo=";
+    hash = "sha256-8rnuSGlfwH5AVp8GQn3RTtiTYFdTNp7Wqq+ATibpkNA=";
   };
 
   nativeBuildInputs = [ qt6.wrapQtAppsHook ];
 
-  buildInputs = [ qt6.qtbase ] ++ lib.optionals stdenv.hostPlatform.isLinux [ qt6.qtwayland ];
-  propagatedBuildInputs = with python3.pkgs; [
-    packaging
+  buildInputs = [ qt6.qtbase ];
+
+  build-system = with python3.pkgs; [ setuptools ];
+
+  dependencies = with python3.pkgs; [
+    packaging # undeclared dependency
+    pyside6
     pillow
     psutil
     python-slugify
     raven
     requests
-    natsort
     mozjpeg_lossless_optimization
+    natsort
     distro
-    pyside6
     numpy
   ];
 
-  qtWrapperArgs = lib.optionals archiveSupport [ ''--prefix PATH : ${lib.makeBinPath [ p7zip ]}'' ];
+  # Note: python scripts wouldn't get wrapped anyway, but let's be explicit about it
+  dontWrapQtApps = true;
+
+  makeWrapperArgs =
+    [
+      "\${qtWrapperArgs[@]}"
+    ]
+    ++ lib.optionals archiveSupport [
+      ''--prefix PATH : ${lib.makeBinPath [ p7zip ]}''
+    ];
 
   nativeInstallCheckInputs = [ versionCheckHook ];
   versionCheckProgram = "${placeholder "out"}/bin/kcc-c2e";