Updated to Python 3.13 and now getting numpy array errors

[kjkEP6]

I recently installed the latest version of Python 3.13 and now when I try to run rxd using the test data I get the following error:
In [26]: rxvals = rx(img)

TypeError Traceback (most recent call last)
Cell In[26], line 1
----> 1 rxvals = rx(img)

File ~\development\spectral-0.24\spectral\algorithms\detectors.py:374, in rx(X, background, window, cov)
371 return map_outer_window_stats(rx_wrapper, X, window[0], window[1],
372 dim_out=1, cov=cov)
373 else:
--> 374 return RX(background)(X)

File ~\development\spectral-0.24\spectral\algorithms\detectors.py:237, in RX.call(self, X)
219 '''Applies the RX anomaly detector to X.
220
221 Arguments:
(...) 234 of floats with one less dimension than the input.
235 '''
236 if not isinstance(X, np.ndarray):
--> 237 raise TypeError('Expected a numpy.ndarray.')
239 if self.background is None:
240 self.set_background(calc_stats(X))

TypeError: Expected a numpy.ndarray.

Anyone else? Why now and how to fix?