cannot import name Transformer from pyproj

I am trying to use Transformer from pyproj using the code below. I, however, get an error attached. What could be the issue?

ImportError                               Traceback (most recent call last)
<ipython-input-1-11c55c4b670c> in <module>
----> 1 from noiseplanet.matcher import matching
      2 import geopandas
      3 import pandas
      4 import osmnx

~\Anaconda3\lib\site-packages\noiseplanet\matcher\__init__.py in <module>
      6 """
      7 
----> 8 from noiseplanet.matcher.model.route import graph_from_track, route_from_track
      9 from noiseplanet.matcher.matching import *
     10 from noiseplanet.matcher.datacleaner import clean_data

~\Anaconda3\lib\site-packages\noiseplanet\matcher\model\__init__.py in <module>
      7 
      8 from noiseplanet.matcher.model.leuven import match_leuven
----> 9 from noiseplanet.matcher.model.nearest import match_nearest_edge
     10 from noiseplanet.matcher.model.route import graph_from_track, route_from_track

~\Anaconda3\lib\site-packages\noiseplanet\matcher\model\nearest.py in <module>
     14 import osmnx as ox
     15 import numpy as np
---> 16 from pyproj import Proj, Geod, Transformer
     17 
     18 # Useful script

ImportError: cannot import name 'Transformer' from 'pyproj' (C:\Users\nzhuw\Anaconda3\lib\site-packages\pyproj\__init__.py)