diff --git a/mmgen_node_tools/data/version b/mmgen_node_tools/data/version
index 6f735af..f9d163c 100644
--- a/mmgen_node_tools/data/version
+++ b/mmgen_node_tools/data/version
@@ -1 +1 @@
-3.6.dev2
+3.6.dev3
diff --git a/nix/curl-cffi.nix b/nix/curl-cffi.nix
new file mode 100644
index 0000000..15f9764
--- /dev/null
+++ b/nix/curl-cffi.nix
@@ -0,0 +1,50 @@
+{
+    stdenv,
+    lib,
+    python,
+    buildPythonPackage,
+    fetchPypi,
+    curl-impersonate-chrome,
+}:
+
+buildPythonPackage rec {
+    pname = "curl-cffi";
+    # version = "0.13.0"; # uses option PROXY_CREDENTIAL_NO_REUSE, unavailable in current libcurl
+    version = "0.10.0";
+    pyproject = true;
+
+    src = fetchPypi {
+        pname = "curl_cffi";
+        version = version;
+        # hash = "sha256-YuzZCjgr1QI3UONgbgqnyxo6i6QcFCcLjl4Unr9yxco="; # 0.13.0
+        hash = "sha256-PjezUmjKWEkvVO0CCuS1DDPuDeutQUXbn3RvBO1GbrA="; # 0.10.0
+    };
+
+    patches = [ ./use-system-libs.patch ];
+
+    buildInputs = [ curl-impersonate-chrome ];
+
+    build-system = with python.pkgs; [
+        cffi
+        setuptools
+    ];
+
+    dependencies = with python.pkgs; [
+        cffi
+        certifi
+        typing-extensions
+    ];
+
+    env = lib.optionalAttrs stdenv.cc.isGNU {
+        NIX_CFLAGS_COMPILE = "-Wno-error=incompatible-pointer-types";
+    };
+
+    pythonImportsCheck = [ "curl_cffi" ];
+
+    meta = with lib; {
+        description = "Python binding for curl-impersonate via cffi";
+        homepage = "https://curl-cffi.readthedocs.io";
+        license = licenses.mit;
+        maintainers = with maintainers; [ chuangzhu ];
+    };
+}
diff --git a/nix/node-tools-packages.nix b/nix/node-tools-packages.nix
index 19792c7..1244425 100644
--- a/nix/node-tools-packages.nix
+++ b/nix/node-tools-packages.nix
@@ -6,7 +6,7 @@
     };
 
     python-packages = with python.pkgs; {
-        yahooquery = (pkgs.callPackage ./yahooquery.nix {}); # ticker
-        pyyaml = pyyaml;                                     # ticker
+        yahooquery = (callPackage ./yahooquery.nix {}); # ticker
+        pyyaml = pyyaml;                                # ticker
     };
 }
diff --git a/nix/use-system-libs.patch b/nix/use-system-libs.patch
new file mode 100644
index 0000000..1d04487
--- /dev/null
+++ b/nix/use-system-libs.patch
@@ -0,0 +1,23 @@
+diff --git a/scripts/build.py b/scripts/build.py
+index b705a0d..9bfcaab 100644
+--- a/scripts/build.py
++++ b/scripts/build.py
+@@ -105,7 +105,6 @@ def get_curl_libraries():
+ ffibuilder = FFI()
+ system = platform.system()
+ root_dir = Path(__file__).parent.parent
+-download_libcurl()
+ 
+ 
+ ffibuilder.set_source(
+@@ -114,9 +113,7 @@ ffibuilder.set_source(
+         #include "shim.h"
+     """,
+     # FIXME from `curl-impersonate`
+-    libraries=get_curl_libraries(),
+-    extra_objects=get_curl_archives(),
+-    library_dirs=[arch["libdir"]],
++    libraries=["curl-impersonate-chrome"],
+     source_extension=".c",
+     include_dirs=[
+         str(root_dir / "include"),
diff --git a/nix/yahooquery-noversioning.patch b/nix/yahooquery-noversioning.patch
deleted file mode 100644
index 4bd3297..0000000
--- a/nix/yahooquery-noversioning.patch
+++ /dev/null
@@ -1,45 +0,0 @@
-diff --git a/pyproject.toml b/pyproject.toml
-index 9d3fb29..399c215 100644
---- a/pyproject.toml
-+++ b/pyproject.toml
-@@ -10,24 +10,24 @@ readme = "README.md"
- 
- [tool.poetry.dependencies]
- python = ">=3.8.1,<4.0"
--requests = "^2.31.0"
--pandas = "^2.0.3"
--requests-futures = "^1.0.1"
--tqdm = "^4.65.0"
--lxml = "^4.9.3"
--selenium = {version = "^4.10.0", optional = true}
--beautifulsoup4 = "^4.12.2"
-+requests = ">=2.31.0"
-+pandas = ">=2.0.3"
-+requests-futures = ">=1.0.1"
-+tqdm = ">=4.65.0"
-+lxml = ">=4.9.3"
-+selenium = {version = ">=4.10.0", optional = true}
-+beautifulsoup4 = ">=4.12.2"
- 
- [tool.poetry.dev-dependencies]
--pytest = "^7.4.0"
--isort = "^5.0.0"
--flake8 = "^6.0.0"
--mypy = "^1.4.1"
--pytest-cov = "^4.1.0"
--black = "^23.7.0"
--pre-commit = "^3.3.3"
--ipython = "^8.0.0"
--mkdocs-material = "^9.1.18"
-+pytest = ">=7.4.0"
-+isort = ">=5.0.0"
-+flake8 = ">=6.0.0"
-+mypy = ">=1.4.1"
-+pytest-cov = ">=4.1.0"
-+black = ">=23.7.0"
-+pre-commit = ">=3.3.3"
-+ipython = ">=8.0.0"
-+mkdocs-material = ">=9.1.18"
- 
- [build-system]
- requires = ["poetry-core>=1.0.0"]
diff --git a/nix/yahooquery.nix b/nix/yahooquery.nix
index 8b1535d..3e8925f 100644
--- a/nix/yahooquery.nix
+++ b/nix/yahooquery.nix
@@ -1,37 +1,30 @@
 {
     lib,
-    pkgs,
-    fetchFromGitHub,
+    buildPythonPackage,
+    fetchPypi,
+    python,
 }:
 
-with pkgs.python312.pkgs;
-
 buildPythonPackage rec {
     pname = "yahooquery";
-    version = "2.3.7";
+    version = "2.4.1";
     pyproject = true;
 
-    disabled = pythonOlder "3.8.1";
-
-    src = fetchFromGitHub {
-        owner = "dpguthrie";
-        repo = "yahooquery";
-        rev = "refs/tags/v${version}";
-        hash = "sha256-Iyuni1SoTB6f7nNFhN5A8Gnv9kV78frjpqvvW8qd+/M=";
+    src = fetchPypi {
+        pname = "yahooquery";
+        version = version;
+        hash = "sha256-GQPGXq5qEtlelFAGNHkhbAeEbwE7riojkXkTUxt/rls=";
     };
 
-    patches = [ ./yahooquery-noversioning.patch ];
+    build-system = with python.pkgs; [ hatchling ];
 
-    build-system = [ poetry-core ];
-
-    dependencies = [
-       requests         # ^2.31.0
-       pandas           # ^2.0.3
-       requests-futures # ^1.0.1
-       tqdm             # ^4.65.0
-       lxml             # ^4.9.3
-       selenium         # {version = ^4.10.0, optional = true}
-       beautifulsoup4   # ^4.12.2
+    propagatedBuildInputs = with python.pkgs; [
+        (callPackage ./curl-cffi.nix {}) # >=0.10.0
+        pandas
+        requests-futures
+        tqdm
+        lxml
+        beautifulsoup4
     ];
 
     doCheck = false; # skip tests