diff --git a/LICENSE b/LICENSE
index 546201584..f9fa24fa0 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2018-2022 Marc Wouts
+Copyright (c) 2018-2023 Marc Wouts
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index 047799024..836d305f1 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -1,6 +1,10 @@
 Jupytext ChangeLog
 ==================
 
+1.14.5 (2023-02-??)
+-------------------
+
+
 1.14.4 (2022-12-11)
 -------------------
 
diff --git a/jupytext/version.py b/jupytext/version.py
index b18c9e996..75c8df00f 100644
--- a/jupytext/version.py
+++ b/jupytext/version.py
@@ -1,3 +1,3 @@
 """Jupytext's version number"""
 
-__version__ = "1.14.4"
+__version__ = "1.14.5-dev"