diff --git a/Scripts/plist.py b/Scripts/plist.py
index 7bc57b5..0b58efc 100755
--- a/Scripts/plist.py
+++ b/Scripts/plist.py
@@ -74,7 +74,11 @@ def load(fp, fmt=None, use_builtin_types=None, dict_type=dict):
                 raise plistlib.InvalidFileException()
         else:
             P = plistlib._FORMATS[fmt]['parser']
-        p = P(use_builtin_types=use_builtin_types, dict_type=dict_type)
+        try:
+            p = P(use_builtin_types=use_builtin_types, dict_type=dict_type)
+        except:
+            # Python 3.9 removed use_builtin_types
+            p = P(dict_type=dict_type)
         if isinstance(p,plistlib._PlistParser):
             # Monkey patch!
             def end_integer():
@@ -116,15 +120,22 @@ def load(fp, fmt=None, use_builtin_types=None, dict_type=dict):
         return p.root
     else:
         use_builtin_types = False if use_builtin_types == None else use_builtin_types
-        p = _BinaryPlistParser(use_builtin_types=use_builtin_types, dict_type=dict_type)
+        try:
+            p = _BinaryPlistParser(use_builtin_types=use_builtin_types, dict_type=dict_type)
+        except:
+            # Python 3.9 removed use_builtin_types
+            p = _BinaryPlistParser(dict_type=dict_type)
         return p.parse(fp)
 
 def loads(value, fmt=None, use_builtin_types=None, dict_type=dict):
     if _check_py3() and isinstance(value, basestring):
         # If it's a string - encode it
         value = value.encode()
-    return load(BytesIO(value),fmt=fmt,use_builtin_types=use_builtin_types,dict_type=dict_type)
-
+    try:
+        return load(BytesIO(value),fmt=fmt,use_builtin_types=use_builtin_types,dict_type=dict_type)
+    except:
+        # Python 3.9 removed use_builtin_types
+        return load(BytesIO(value),fmt=fmt,dict_type=dict_type)
 def dump(value, fp, fmt=FMT_XML, sort_keys=True, skipkeys=False):
     if _check_py3():
         plistlib.dump(value, fp, fmt=fmt, sort_keys=sort_keys, skipkeys=skipkeys)