diff --git a/CHANGES.rst b/CHANGES.rst
index f0ea77e..94a262c 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,6 +1,12 @@
 Changelog for bmi-example-python
 ================================
 
+2.1.3 (unreleased)
+------------------
+
+- Nothing changed yet.
+
+
 2.1.2 (2024-01-05)
 ------------------
 
diff --git a/heat/_version.py b/heat/_version.py
index 4eabd0b..e41cb18 100644
--- a/heat/_version.py
+++ b/heat/_version.py
@@ -1 +1 @@
-__version__ = "2.1.2"
+__version__ = "2.1.3.dev0"