diff --git a/pylace/pyproject.toml b/pylace/pyproject.toml
index 6651421b..fc161712 100644
--- a/pylace/pyproject.toml
+++ b/pylace/pyproject.toml
@@ -131,3 +131,7 @@ strict = true
 
 [tool.black]
 line-length = 80
+
+
+[tool.maturin]
+module-name = "lace.core"
diff --git a/pylace/requirements-dev.txt b/pylace/requirements-dev.txt
index e5f4356a..aacb02b0 100644
--- a/pylace/requirements-dev.txt
+++ b/pylace/requirements-dev.txt
@@ -3,8 +3,8 @@
 # Dependencies
 
 # Tooling
-hypothesis==6.65.2
-maturin==0.14.10
-pytest==7.2.0
-pytest-cov==4.0.0
-pytest-xdist==3.1.0
+hypothesis==6.100.2
+maturin==1.5.1
+pytest==8.2.0
+pytest-cov==5.0.0
+pytest-xdist==3.6.1
diff --git a/pylace/src/lib.rs b/pylace/src/lib.rs
index 192e52e0..82df3fd7 100644
--- a/pylace/src/lib.rs
+++ b/pylace/src/lib.rs
@@ -1437,6 +1437,7 @@ create_exception!(lace, EngineUpdateError, pyo3::exceptions::PyException);
 
 /// A Python module implemented in Rust.
 #[pymodule]
+#[pyo3(name = "core")]
 fn core(py: Python, m: &PyModule) -> PyResult<()> {
     m.add_class::<Codebook>()?;
     m.add_class::<CoreEngine>()?;
diff --git a/pylace/src/utils.rs b/pylace/src/utils.rs
index a317e2b0..bf6c8f5f 100644
--- a/pylace/src/utils.rs
+++ b/pylace/src/utils.rs
@@ -518,7 +518,7 @@ fn pyany_to_category(val: &PyAny) -> PyResult<lace::Category> {
             let x = val.downcast::<PyString>()?.extract::<String>()?;
             Ok(Category::String(x))
         }
-        "int64" | "int32" | "int16" | "int8" => {
+        "numpy.int64" | "numpy.int32" | "numpy.int16" | "numpy.int8" => {
             let x = val.call_method("__int__", (), None)?.extract::<u8>()?;
             Ok(Category::U8(x))
         }