diff --git a/CHANGES.rst b/CHANGES.rst
index 07ce2fcd..c1d12c39 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,6 +1,12 @@
 Changelog
 =========
 
+6.2.2 (unreleased)
+------------------
+
+- Nothing changed yet.
+
+
 6.2.1 (2023-01-26)
 ------------------
 
diff --git a/setup.py b/setup.py
index 71661c8e..bc931eb0 100644
--- a/setup.py
+++ b/setup.py
@@ -4,7 +4,7 @@
 from setuptools import setup
 
 
-version = "6.2.1"
+version = "6.2.2.dev0"
 
 
 long_description = "\n\n".join(