diff --git a/pyproject.toml b/pyproject.toml
index ccea7e5..9125259 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -133,7 +133,7 @@ namespaces = false
 version = {attr = 'sdgym.__version__'}
 
 [tool.bumpversion]
-current_version = "0.9.0"
+current_version = "0.9.1.dev0"
 parse = '(?P<major>\d+)\.(?P<minor>\d+)\.(?P<patch>\d+)(\.(?P<release>[a-z]+)(?P<candidate>\d+))?'
 serialize = [
     '{major}.{minor}.{patch}.{release}{candidate}',
diff --git a/sdgym/__init__.py b/sdgym/__init__.py
index 905163d..ef447fa 100644
--- a/sdgym/__init__.py
+++ b/sdgym/__init__.py
@@ -8,7 +8,7 @@
 __copyright__ = 'Copyright (c) 2022 DataCebo, Inc.'
 __email__ = 'info@sdv.dev'
 __license__ = 'BSL-1.1'
-__version__ = '0.9.0'
+__version__ = '0.9.1.dev0'
 
 import logging