diff --git a/setup.cfg b/setup.cfg
index 409b61b1..e2fd9fa2 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.3.0
+current_version = 0.4.0
 commit = True
 tag = True
 
diff --git a/setup.py b/setup.py
index bd31ba2b..274543ca 100644
--- a/setup.py
+++ b/setup.py
@@ -4,7 +4,7 @@
 
 from setuptools import setup
 
-__version__ = '0.3.0'
+__version__ = '0.4.0'
 
 
 def package_data(pkg, roots):