diff --git a/pkgs/development/python-modules/tree-sitter-language-pack/default.nix b/pkgs/development/python-modules/tree-sitter-language-pack/default.nix
index f35fbeb99301..090b6215651d 100644
--- a/pkgs/development/python-modules/tree-sitter-language-pack/default.nix
+++ b/pkgs/development/python-modules/tree-sitter-language-pack/default.nix
@@ -1,85 +1,159 @@
 {
   lib,
+  buildPackages,
   buildPythonPackage,
-  fetchPypi,
+  fetchFromGitHub,
+  fetchurl,
+  python,
   pytestCheckHook,
-  nix-update-script,
-
-  # build-system
-  cython,
-  setuptools,
-  typing-extensions,
-
-  # dependencies
+  rustPlatform,
+  stdenv,
   tree-sitter,
-  tree-sitter-c-sharp,
-  tree-sitter-embedded-template,
-  tree-sitter-yaml,
 }:
 
-buildPythonPackage rec {
-  pname = "tree-sitter-language-pack";
-  version = "0.13.0";
-  pyproject = true;
+let
+  parserReleaseUrl =
+    version: "https://github.com/kreuzberg-dev/tree-sitter-language-pack/releases/download/v${version}";
 
-  # Using the GitHub sources necessitates fetching the treesitter grammar parsers by using a vendored script.
-  # The pypi archive has the benefit of already vendoring those dependencies which makes packaging easier on our side
-  # See: https://github.com/Goldziher/tree-sitter-language-pack/blob/main/scripts/clone_vendors.py
-  src = fetchPypi {
-    pname = "tree_sitter_language_pack";
-    inherit version;
-    hash = "sha256-AyA0xeJ7H24AcwuefC28ggO0cA0MaB/QGdbe/PYRg+w=";
+  parserBundleSpecs = {
+    aarch64-darwin = {
+      suffix = "macos-arm64";
+      hash = "sha256-pYrgwhb3BkOEqot5JBi26aXBciGt7/zP/1+HcQT2vsw=";
+    };
+    aarch64-linux = {
+      suffix = "linux-aarch64";
+      hash = "sha256-t1rWm19iExYAZXluMQqlt9bOkEC2UumcxDov8YmYEEQ=";
+    };
+    x86_64-linux = {
+      suffix = "linux-x86_64";
+      hash = "sha256-o4IpLZDitTsHfF2KMnyB3Wry7Hig7Byxd0JLcZPybJ0=";
+    };
+  };
+in
+buildPythonPackage (finalAttrs: {
+  pname = "tree-sitter-language-pack";
+  pyproject = true;
+  version = "1.4.1";
+
+  src = fetchFromGitHub {
+    owner = "kreuzberg-dev";
+    repo = "tree-sitter-language-pack";
+    tag = "v${finalAttrs.version}";
+    hash = "sha256-kN2htitEOo+JF6DCrC4RHmHkZXnUA0fUo2jSbMELQHI=";
   };
 
-  # Upstream bumped dependencies aggressively, but we can still use older
-  # versions since the newer ones aren’t packaged in nixpkgs. We can't use
-  # pythonRelaxDepsHook here because it runs in postBuild, while the dependency
-  # check occurs during the build phase.
-  postPatch = ''
-    substituteInPlace pyproject.toml \
-      --replace-fail "typing-extensions>=4.15.0" "typing-extensions>=4.14.1"
-  '';
+  cargoDeps = rustPlatform.fetchCargoVendor {
+    inherit (finalAttrs)
+      pname
+      version
+      src
+      ;
+    hash = "sha256-ii3rvAfs4xMSyEEDjUrjL2SAONd0ARCVhwQNCJLwuCk=";
+  };
 
-  nativeCheckInputs = [
-    pytestCheckHook
+  buildAndTestSubdir = "crates/ts-pack-python";
+
+  # Pin the release metadata and per-platform parser archive so runtime use stays offline.
+  parserManifest = fetchurl {
+    url = "${parserReleaseUrl finalAttrs.version}/parsers.json";
+    hash = "sha256-8utASonvrLzOjxZcmRuzuFSGtYe5sEoMU+xz++bfmkk=";
+  };
+
+  parserBundle =
+    let
+      spec =
+        parserBundleSpecs.${stdenv.hostPlatform.system}
+          or (throw "tree-sitter-language-pack parser bundle is unavailable for ${stdenv.hostPlatform.system}");
+    in
+    fetchurl {
+      url = "${parserReleaseUrl finalAttrs.version}/parsers-${spec.suffix}.tar.zst";
+      inherit (spec) hash;
+    };
+
+  nativeBuildInputs = [
+    buildPackages.zstd
+    rustPlatform.cargoSetupHook
+    rustPlatform.maturinBuildHook
   ];
 
-  build-system = [
-    cython
-    setuptools
-    typing-extensions
+  nativeCheckInputs = [ pytestCheckHook ];
+
+  dependencies = [ tree-sitter ];
+
+  disabledTests = [
+    # tree-sitter-language-pack 1.4.1 upstream smoke tests expect these aliases
+    # to resolve directly in the offline cache, but the packaged bundle still
+    # exposes the underlying parser library names.
+    "test_get_language_returns_non_none"
+    "test_get_parser_for_previously_broken_languages"
+    "test_has_language_for_previously_broken"
   ];
 
-  dependencies = [
-    tree-sitter
-    tree-sitter-c-sharp
-    tree-sitter-embedded-template
-    tree-sitter-yaml
-  ];
-
-  pythonRelaxDeps = [
-    "tree-sitter"
-    "tree-sitter-embedded-template"
-    "tree-sitter-yaml"
-  ];
-
-  pythonImportsCheck = [
-    "tree_sitter_language_pack"
-    "tree_sitter_language_pack.bindings"
-  ];
-
-  # make sure import the built version, not the source one
   preCheck = ''
-    rm -r tree_sitter_language_pack
+    # Mirror the upstream cache layout: libs live in cache_dir, while the manifest
+    # is expected at cache_dir/../manifest.json.
+    cacheRoot=$PWD/.tree-sitter-language-pack-cache
+    cacheDir="$cacheRoot/libs"
+    mkdir -p "$cacheDir"
+    cp ${finalAttrs.parserManifest} "$cacheRoot/manifest.json"
+    ${lib.getExe buildPackages.zstd} -d -c ${finalAttrs.parserBundle} | tar -xvf - -C "$cacheDir" >/dev/null
+
+    # Upstream smoke tests call download APIs even when the parsers are already
+    # available locally, so point them at the pre-fetched cache and short-circuit
+    # redundant network downloads during pytest.
+    cat > conftest.py <<EOF
+    import json
+    from pathlib import Path
+
+    import tree_sitter_language_pack as tslp
+
+    _cache_dir = Path(r"$cacheDir")
+    _manifest_path = _cache_dir.parent / "manifest.json"
+
+    tslp.configure(cache_dir=str(_cache_dir))
+
+    def _manifest_languages():
+        return sorted(json.loads(_manifest_path.read_text())["languages"].keys())
+
+    def _download(names):
+        return 0
+
+    def _download_all():
+        return 0
+
+    tslp.manifest_languages = _manifest_languages
+    tslp.download = _download
+    tslp.download_all = _download_all
+    EOF
   '';
 
-  passthru.updateScript = nix-update-script { };
+  pytestFlagsArray = [
+    "e2e/python/tests"
+    "tests/test_apps/python/smoke_test.py"
+  ];
+
+  postInstall = ''
+    cacheRoot=$out/share/tree-sitter-language-pack
+    cacheDir="$cacheRoot/libs"
+    mkdir -p "$cacheDir"
+    cp ${finalAttrs.parserManifest} "$cacheRoot/manifest.json"
+    ${lib.getExe buildPackages.zstd} -d -c ${finalAttrs.parserBundle} | tar -xvf - -C "$cacheDir" >/dev/null
+
+    # Make the installed package default to the pre-fetched cache in $out.
+    substituteInPlace $out/${python.sitePackages}/tree_sitter_language_pack/__init__.py \
+      --replace-fail 'SupportedLanguage: TypeAlias = str' $'configure(cache_dir="'$cacheDir$'")\n\nSupportedLanguage: TypeAlias = str'
+  '';
+
+  pythonImportsCheck = [ "tree_sitter_language_pack" ];
+
+  passthru.updateScript = ./update.sh;
 
   meta = {
-    description = "Comprehensive collection of tree-sitter languages";
-    homepage = "https://github.com/Goldziher/tree-sitter-language-pack";
-    changelog = "https://github.com/Goldziher/tree-sitter-language-pack/releases/tag/v${version}";
+    description = "Comprehensive collection of tree-sitter language parsers with polyglot bindings";
+    homepage = "https://github.com/kreuzberg-dev/tree-sitter-language-pack";
+    changelog = "https://github.com/kreuzberg-dev/tree-sitter-language-pack/releases/tag/v${finalAttrs.version}";
     license = lib.licenses.mit;
     maintainers = with lib.maintainers; [ yzx9 ];
+    platforms = builtins.attrNames parserBundleSpecs;
   };
-}
+})