diff --git a/ctgan/__init__.py b/ctgan/__init__.py
index 419ce1f1..d0f8dfe5 100644
--- a/ctgan/__init__.py
+++ b/ctgan/__init__.py
@@ -4,7 +4,7 @@
 
 __author__ = 'DataCebo, Inc.'
 __email__ = 'info@sdv.dev'
-__version__ = '0.9.0'
+__version__ = '0.9.1.dev0'
 
 from ctgan.demo import load_demo
 from ctgan.synthesizers.ctgan import CTGAN
diff --git a/setup.cfg b/setup.cfg
index 17127e84..29a8871a 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.9.0
+current_version = 0.9.1.dev0
 commit = True
 tag = True
 parse = (?P<major>\d+)\.(?P<minor>\d+)\.(?P<patch>\d+)(\.(?P<release>[a-z]+)(?P<candidate>\d+))?
diff --git a/setup.py b/setup.py
index 51ebe8fb..4a9a260b 100644
--- a/setup.py
+++ b/setup.py
@@ -119,6 +119,6 @@
     test_suite='tests',
     tests_require=tests_require,
     url='https://github.com/sdv-dev/CTGAN',
-    version='0.9.0',
+    version='0.9.1.dev0',
     zip_safe=False,
 )