diff -ur a/src/wadllib/application.py b/src/wadllib/application.py
--- a/src/wadllib/application.py	2020-03-30 15:07:46.428113312 +0200
+++ b/src/wadllib/application.py	2020-03-30 15:08:11.173467128 +0200
@@ -53,7 +53,7 @@
     from urllib.parse import urlencode
 except ImportError:
     from urllib import urlencode
-import xml.etree.cElementTree as ET
+import xml.etree.ElementTree as ET
 
 from lazr.uri import URI, merge