diff --git a/CHANGES.rst b/CHANGES.rst
index 5f96e523..695324f6 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -2,6 +2,12 @@
  Changes
 =========
 
+7.3 (unreleased)
+================
+
+- Nothing changed yet.
+
+
 7.2 (2024-11-28)
 ================
 
diff --git a/setup.py b/setup.py
index 038bf4cb..4d58c779 100644
--- a/setup.py
+++ b/setup.py
@@ -31,7 +31,7 @@
 from setuptools.command.build_ext import build_ext
 
 
-version = '7.2'
+version = '7.3.dev0'
 
 
 class optional_build_ext(build_ext):