diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index d1af651..de2393c 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -110,12 +110,12 @@ jobs:
           name: wheels-musllinux-${{ matrix.platform.target }}
           path: dist
       - name: pytest
-        if: ${{ !startsWith(matrix.platform.target, 'x86') }}
+        if: ${{ matrix.platform.target == 'x86_64' }}
         uses: uraimo/run-on-arch-action@v2
         env:
           PYO3_USE_ABI3_FORWARD_COMPATIBILITY: 1
         with:
-          arch: ${{ matrix.platform.target }}
+          arch: x86_64
           distro: alpine_latest
           githubToken: ${{ github.token }}
           install: |
diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 0000000..5e53f1e
--- /dev/null
+++ b/Cargo.lock
@@ -0,0 +1,268 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "autocfg"
+version = "1.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f2032f911046de80f0a198e0901378627c33f59ea0ac00e363d481118bd70a53"
+
+[[package]]
+name = "crc32c"
+version = "0.6.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3a47af21622d091a8f0fb295b88bc886ac74efcc613efc19f5d0b21de5c89e47"
+dependencies = [
+ "rustc_version",
+]
+
+[[package]]
+name = "e57"
+version = "0.11.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "463e55cebbc2333516a69f0b2980a7da2ad94f4306f51d02e6d3b3a213202c96"
+dependencies = [
+ "crc32c",
+ "roxmltree",
+]
+
+[[package]]
+name = "e57-python"
+version = "0.2.1-a1"
+dependencies = [
+ "e57",
+ "numpy",
+ "pyo3",
+]
+
+[[package]]
+name = "heck"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
+
+[[package]]
+name = "libc"
+version = "0.2.186"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "68ab91017fe16c622486840e4c83c9a37afeff978bd239b5293d61ece587de66"
+
+[[package]]
+name = "matrixmultiply"
+version = "0.3.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a06de3016e9fae57a36fd14dba131fccf49f74b40b7fbdb472f96e361ec71a08"
+dependencies = [
+ "autocfg",
+ "rawpointer",
+]
+
+[[package]]
+name = "memchr"
+version = "2.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6b947ae49db0d222b1dbc6b113ce7248a3fc3a6ca21b696717bfc000ba4484d8"
+
+[[package]]
+name = "ndarray"
+version = "0.15.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "adb12d4e967ec485a5f71c6311fe28158e9d6f4bc4a447b474184d0f91a8fa32"
+dependencies = [
+ "matrixmultiply",
+ "num-complex",
+ "num-integer",
+ "num-traits",
+ "rawpointer",
+]
+
+[[package]]
+name = "num-complex"
+version = "0.4.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "73f88a1307638156682bada9d7604135552957b7818057dcef22705b4d509495"
+dependencies = [
+ "num-traits",
+]
+
+[[package]]
+name = "num-integer"
+version = "0.1.46"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7969661fd2958a5cb096e56c8e1ad0444ac2bbcd0061bd28660485a44879858f"
+dependencies = [
+ "num-traits",
+]
+
+[[package]]
+name = "num-traits"
+version = "0.2.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "071dfc062690e90b734c0b2273ce72ad0ffa95f0c74596bc250dcfd960262841"
+dependencies = [
+ "autocfg",
+]
+
+[[package]]
+name = "numpy"
+version = "0.28.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "778da78c64ddc928ebf5ad9df5edf0789410ff3bdbf3619aed51cd789a6af1e2"
+dependencies = [
+ "libc",
+ "ndarray",
+ "num-complex",
+ "num-integer",
+ "num-traits",
+ "pyo3",
+ "pyo3-build-config",
+ "rustc-hash",
+]
+
+[[package]]
+name = "once_cell"
+version = "1.21.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9f7c3e4beb33f85d45ae3e3a1792185706c8e16d043238c593331cc7cd313b50"
+
+[[package]]
+name = "portable-atomic"
+version = "1.13.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c33a9471896f1c69cecef8d20cbe2f7accd12527ce60845ff44c153bb2a21b49"
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.106"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8fd00f0bb2e90d81d1044c2b32617f68fcb9fa3bb7640c23e9c748e53fb30934"
+dependencies = [
+ "unicode-ident",
+]
+
+[[package]]
+name = "pyo3"
+version = "0.28.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "91fd8e38a3b50ed1167fb981cd6fd60147e091784c427b8f7183a7ee32c31c12"
+dependencies = [
+ "libc",
+ "once_cell",
+ "portable-atomic",
+ "pyo3-build-config",
+ "pyo3-ffi",
+ "pyo3-macros",
+]
+
+[[package]]
+name = "pyo3-build-config"
+version = "0.28.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e368e7ddfdeb98c9bca7f8383be1648fd84ab466bf2bc015e94008db6d35611e"
+dependencies = [
+ "target-lexicon",
+]
+
+[[package]]
+name = "pyo3-ffi"
+version = "0.28.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f29e10af80b1f7ccaf7f69eace800a03ecd13e883acfacc1e5d0988605f651e"
+dependencies = [
+ "libc",
+ "pyo3-build-config",
+]
+
+[[package]]
+name = "pyo3-macros"
+version = "0.28.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "df6e520eff47c45997d2fc7dd8214b25dd1310918bbb2642156ef66a67f29813"
+dependencies = [
+ "proc-macro2",
+ "pyo3-macros-backend",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "pyo3-macros-backend"
+version = "0.28.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c4cdc218d835738f81c2338f822078af45b4afdf8b2e33cbb5916f108b813acb"
+dependencies = [
+ "heck",
+ "proc-macro2",
+ "pyo3-build-config",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.45"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "41f2619966050689382d2b44f664f4bc593e129785a36d6ee376ddf37259b924"
+dependencies = [
+ "proc-macro2",
+]
+
+[[package]]
+name = "rawpointer"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "60a357793950651c4ed0f3f52338f53b2f809f32d83a07f72909fa13e4c6c1e3"
+
+[[package]]
+name = "roxmltree"
+version = "0.21.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f1964b10c76125c36f8afe190065a4bf9a87bf324842c05701330bba9f1cacbb"
+dependencies = [
+ "memchr",
+]
+
+[[package]]
+name = "rustc-hash"
+version = "2.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "94300abf3f1ae2e2b8ffb7b58043de3d399c73fa6f4b73826402a5c457614dbe"
+
+[[package]]
+name = "rustc_version"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cfcb3a22ef46e85b45de6ee7e79d063319ebb6594faafcf1c225ea92ab6e9b92"
+dependencies = [
+ "semver",
+]
+
+[[package]]
+name = "semver"
+version = "1.0.28"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8a7852d02fc848982e0c167ef163aaff9cd91dc640ba85e263cb1ce46fae51cd"
+
+[[package]]
+name = "syn"
+version = "2.0.117"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e665b8803e7b1d2a727f4023456bbbbe74da67099c585258af0ad9c5013b9b99"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
+[[package]]
+name = "target-lexicon"
+version = "0.13.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "adb6935a6f5c20170eeceb1a3835a49e12e19d792f6dd344ccc76a985ca5a6ca"
+
+[[package]]
+name = "unicode-ident"
+version = "1.0.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e6e4313cd5fcd3dad5cafa179702e2b244f760991f45397d14d4ebf38247da75"
diff --git a/Cargo.toml b/Cargo.toml
index 478defc..85bb07c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,7 +9,6 @@ name = "e57"
 crate-type = ["cdylib"]
 
 [dependencies]
-pyo3 = "0.21.2"
-e57 = { version = "0.11.7",features =["crc32c"]}
-numpy = "0.21.0"
-ndarray = "0.15.6"
+pyo3 = "0.28.3"
+e57 = { version = "0.11.12", features = ["crc32c"] }
+numpy = "0.28.0"
diff --git a/pyproject.toml b/pyproject.toml
index cc8a7f2..7c8cf4b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,12 +1,12 @@
 [build-system]
-requires = ["maturin>=1.0,<2.0"]
+requires = ["maturin>=1.13,<2.0"]
 build-backend = "maturin"
 
 [project]
 name = "e57"
+version = "0.2.1a1"
 dependencies = [
-    'pytest',
-    'numpy',
+    'numpy>=2,<3',
 ]
 description = "Read e57 files to Python. E57 is a compact, non-proprietary point cloud format that's defined by the ASTM E2807 standard.  This format is widely adopted by 3D design applications."
 authors = [
@@ -23,6 +23,11 @@ classifiers = [
     "Topic :: File Formats",
 ]
 
+[project.optional-dependencies]
+test = [
+    'pytest>=9,<10',
+]
+
 [project.urls]
 repository = "https://github.com/dancergraham/e57-python"
 
diff --git a/src/lib.rs b/src/lib.rs
index a2ef5f8..1c0c79b 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -2,18 +2,18 @@ use std::fs::File;
 use std::io::BufReader;
 
 use ::e57::{CartesianCoordinate, E57Reader};
-use ndarray::Ix2;
-use numpy::{PyArray, PyArrayMethods};
+use numpy::ndarray::Array2;
+use numpy::{IntoPyArray, PyArray2};
 use pyo3::prelude::*;
 
 #[pyclass]
 pub struct E57 {
     #[pyo3(get)]
-    pub points: Py<PyArray<f64, Ix2>>,
+    pub points: Py<PyArray2<f64>>,
     #[pyo3(get)]
-    pub color: Py<PyArray<f32, Ix2>>,
+    pub color: Py<PyArray2<f32>>,
     #[pyo3(get)]
-    pub intensity: Py<PyArray<f32, Ix2>>,
+    pub intensity: Py<PyArray2<f32>>,
 }
 
 /// Extracts the xml contents from an e57 file.
@@ -80,27 +80,24 @@ unsafe fn read_points(py: Python<'_>, filepath: &str) -> PyResult<E57> {
     let n_colors = color_vec.len() / 3;
     let n_intensities = intensity_vec.len();
     let mut e57 = E57 {
-        points: Py::from(
-            PyArray::from_vec_bound(py, point_vec)
-                .reshape([nrows, 3])
-                .unwrap(),
-        ),
-        color: Py::from(PyArray::new_bound(py, (0, 3), false)),
-        intensity: Py::from(PyArray::new_bound(py, (0, 1), false)),
+        points: Array2::from_shape_vec((nrows, 3), point_vec)
+            .unwrap()
+            .into_pyarray(py)
+            .unbind(),
+        color: Array2::<f32>::zeros((0, 3)).into_pyarray(py).unbind(),
+        intensity: Array2::<f32>::zeros((0, 1)).into_pyarray(py).unbind(),
     };
     if n_colors == n_points {
-        e57.color = Py::from(
-            PyArray::from_vec_bound(py, color_vec)
-                .reshape([nrows, 3])
-                .unwrap(),
-        )
+        e57.color = Array2::from_shape_vec((nrows, 3), color_vec)
+            .unwrap()
+            .into_pyarray(py)
+            .unbind();
     }
     if n_intensities == n_points {
-        e57.intensity = Py::from(
-            PyArray::from_vec_bound(py, intensity_vec)
-                .reshape([nrows, 1])
-                .unwrap(),
-        )
+        e57.intensity = Array2::from_shape_vec((nrows, 1), intensity_vec)
+            .unwrap()
+            .into_pyarray(py)
+            .unbind();
     }
     Ok(e57)
 }