diff --git a/CHANGES.rst b/CHANGES.rst
index fe61ecd..558cf4c 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -2,6 +2,12 @@ Changelog of threedi-schema
 ===================================================
 
 
+0.300.2 (unreleased)
+--------------------
+
+- Nothing changed yet.
+
+
 0.300.1 (2025-01-24)
 --------------------
 
diff --git a/threedi_schema/__init__.py b/threedi_schema/__init__.py
index 835ba52..51c55d1 100644
--- a/threedi_schema/__init__.py
+++ b/threedi_schema/__init__.py
@@ -2,6 +2,6 @@
 from .domain import constants, custom_types, models  # NOQA
 
 # fmt: off
-__version__ = '0.300.1'
+__version__ = '0.300.2.dev0'
 
 # fmt: on