diff --git a/array_processing/tools/array_characterization.py b/array_processing/tools/array_characterization.py
index e2b35b3..ae2272e 100644
--- a/array_processing/tools/array_characterization.py
+++ b/array_processing/tools/array_characterization.py
@@ -484,12 +484,10 @@ def read_kml(kml_file):
     """
 
     # Read in KML file
-    k = kml.KML()
-    with open(kml_file, mode='rb') as f:
-        k.from_string(f.read())
+    k = kml.KML.parse(kml_file, validate=False)
 
     # Extract coordinates
-    elements = list(list(list(k.features())[0].features())[0].features())
+    elements = k.features[0].features[0].features
     lonlist = [element.geometry.x for element in elements]
     latlist = [element.geometry.y for element in elements]
 
diff --git a/environment.yml b/environment.yml
index 0ebe0c2..2407fe0 100644
--- a/environment.yml
+++ b/environment.yml
@@ -1,10 +1,9 @@
 name: uafinfra
 channels:
   - conda-forge
-  - defaults
 dependencies:
-  - python<3.11  # Temporary fix (see https://github.com/numba/numba/issues/8304)
-  - fastkml<1
+  - python<3.11  # This is required to avoid "setting array with sequence error"
+  - fastkml
   - ipython
   - obspy
   - numba