diff --git a/modules/PreferenceParser.py b/modules/PreferenceParser.py
index 268f989e..bc384813 100755
--- a/modules/PreferenceParser.py
+++ b/modules/PreferenceParser.py
@@ -1,7 +1,7 @@
 from collections import namedtuple
 from pathlib import Path
 from sys import exit as sys_exit
-from typing import Any, Iterator, Optional, Union
+from typing import Any, Iterator, Literal, Optional, Union, overload
 
 from num2words import CONVERTER_CLASSES as SUPPORTED_LANGUAGE_CODES
 from tqdm import tqdm
diff --git a/modules/ref/version b/modules/ref/version
index 9dd4f8da..8ce4f95f 100755
--- a/modules/ref/version
+++ b/modules/ref/version
@@ -1 +1 @@
-v1.16.0-develop19
\ No newline at end of file
+v1.16.0-develop20
\ No newline at end of file