diff --git a/setup.py b/setup.py
index a68740d..924385d 100644
--- a/setup.py
+++ b/setup.py
@@ -30,7 +30,7 @@ def is_excluded(s):
 setuptools.setup(
     name="chain_control",
     packages=setuptools.find_packages(),
-    version="0.3.1",
+    version="0.4.0",
     package_data={
         "cc": find_data_files(
             "cc", patterns=["*.xml", "*.m", "*.eqx"]