diff --git a/src/pdal/PyArray.cpp b/src/pdal/PyArray.cpp
index d3521173..55f87b5d 100644
--- a/src/pdal/PyArray.cpp
+++ b/src/pdal/PyArray.cpp
@@ -90,6 +90,10 @@ std::string toString(PyObject *pname)
 } // unnamed namespace
 
 
+#if NPY_ABI_VERSION < 0x02000000
+  #define PyDataType_FIELDS(descr) ((descr)->fields)
+#endif
+
 Array::Array(PyArrayObject* array) : m_array(array), m_rowMajor(true)
 {
     Py_XINCREF(array);
diff --git a/src/pdal/__init__.py b/src/pdal/__init__.py
index 41b36121..a312f568 100644
--- a/src/pdal/__init__.py
+++ b/src/pdal/__init__.py
@@ -1,5 +1,5 @@
 __all__ = ["Pipeline", "Stage", "Reader", "Filter", "Writer", "dimensions", "info"]
-__version__ = '3.4.4'
+__version__ = '3.4.5'
 
 from . import libpdalpython
 from .drivers import inject_pdal_drivers