diff --git a/CHANGES.rst b/CHANGES.rst
index d3853ed..3476957 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,6 +1,12 @@
 Changes
 =======
 
+3.1.5 (unreleased)
+------------------
+
+- Nothing changed yet.
+
+
 3.1.4 (2024-10-24)
 ------------------
 
diff --git a/setup.py b/setup.py
index 26004fc..5db2b51 100644
--- a/setup.py
+++ b/setup.py
@@ -3,7 +3,7 @@
 from setuptools import setup
 
 
-version = "3.1.4"
+version = "3.1.5.dev0"
 long_description = (
     f"{Path('README.rst').read_text()}\n{Path('CHANGES.rst').read_text()}"
 )