diff --git a/pkgs/development/python-modules/trove-classifiers/default.nix b/pkgs/development/python-modules/trove-classifiers/default.nix
index 898180da3cd0..083bb90e8fcd 100644
--- a/pkgs/development/python-modules/trove-classifiers/default.nix
+++ b/pkgs/development/python-modules/trove-classifiers/default.nix
@@ -7,44 +7,41 @@
   setuptools,
 }:
 
-let
-  self = buildPythonPackage rec {
-    pname = "trove-classifiers";
-    version = "2026.5.20.19";
-    pyproject = true;
+buildPythonPackage (finalAttrs: {
+  pname = "trove-classifiers";
+  version = "2026.6.1.19";
+  pyproject = true;
 
-    src = fetchPypi {
-      pname = "trove_classifiers";
-      inherit version;
-      hash = "sha256-bmEZk5h8qTJpaK1wRScz2t0xRxWZ05iWBFsolwqbuB4=";
-    };
-
-    postPatch = ''
-      substituteInPlace tests/test_cli.py \
-        --replace-fail "BINDIR = Path(sys.executable).parent" "BINDIR = '$out/bin'"
-    '';
-
-    build-system = [
-      calver
-      setuptools
-    ];
-
-    doCheck = false; # avoid infinite recursion with hatchling
-
-    nativeCheckInputs = [ pytestCheckHook ];
-
-    pythonImportsCheck = [ "trove_classifiers" ];
-
-    passthru.tests.trove-classifiers = self.overridePythonAttrs { doCheck = true; };
-
-    meta = {
-      description = "Canonical source for classifiers on PyPI";
-      homepage = "https://github.com/pypa/trove-classifiers";
-      changelog = "https://github.com/pypa/trove-classifiers/releases/tag/${version}";
-      license = lib.licenses.asl20;
-      mainProgram = "trove-classifiers";
-      maintainers = with lib.maintainers; [ dotlambda ];
-    };
+  src = fetchPypi {
+    pname = "trove_classifiers";
+    inherit (finalAttrs) version;
+    hash = "sha256-xRMrS2GoKdEc+9LXLpfyCkXtbtuV5Fxe/eteAINrJ0U=";
   };
-in
-self
+
+  postPatch = ''
+    substituteInPlace tests/test_cli.py \
+      --replace-fail "BINDIR = Path(sys.executable).parent" "BINDIR = '$out/bin'"
+  '';
+
+  build-system = [
+    calver
+    setuptools
+  ];
+
+  doCheck = false; # avoid infinite recursion with hatchling
+
+  nativeCheckInputs = [ pytestCheckHook ];
+
+  pythonImportsCheck = [ "trove_classifiers" ];
+
+  passthru.tests.trove-classifiers = finalAttrs.finalPackage.overrideAttrs { doInstallCheck = true; };
+
+  meta = {
+    description = "Canonical source for classifiers on PyPI";
+    homepage = "https://github.com/pypa/trove-classifiers";
+    changelog = "https://github.com/pypa/trove-classifiers/releases/tag/${finalAttrs.version}";
+    license = lib.licenses.asl20;
+    mainProgram = "trove-classifiers";
+    maintainers = with lib.maintainers; [ dotlambda ];
+  };
+})