diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 5ce4724..985890d 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -1,3 +1,8 @@
+0.3.1 - (not released yet)
+==========================
+
+tbd
+
 0.3.0 - 2023-11-23
 ==================
 
diff --git a/beeref/constants.py b/beeref/constants.py
index e29dd3b..835753a 100644
--- a/beeref/constants.py
+++ b/beeref/constants.py
@@ -15,7 +15,7 @@
 
 APPNAME = 'BeeRef'
 APPNAME_FULL = f'{APPNAME} Reference Image Viewer'
-VERSION = '0.3.0'
+VERSION = '0.3.1-dev'
 WEBSITE = 'https://github.com/rbreu/beeref'
 COPYRIGHT = 'Copyright © 2021-2023 Rebecca Breu'
 
diff --git a/setup.py b/setup.py
index de8d5ed..018d78b 100644
--- a/setup.py
+++ b/setup.py
@@ -2,7 +2,7 @@ from setuptools import setup
 
 setup(
     name='BeeRef',
-    version='0.3.0',
+    version='0.3.1-dev',
     author='Rebecca Breu',
     author_email='rebecca@rbreu.de',
     url='https://github.com/rbreu/beeref',