diff --git a/setup.py b/setup.py
index 5d17c25ff06870ea3517299a7a08a246e42c64d9..6b927fd2ed63d5c592e772bbc9ce0d2b27c6656f 100644
--- a/setup.py
+++ b/setup.py
@@ -19,7 +19,7 @@ from distutils.core import setup
 from setuptools import find_packages
 
 setup(name='lvcnrpy',
-      version='3.0.0',
+      version='4.0.0',
       description='Thin Python API to interact with the LVC NR catalogue',
       author='Edward Fauchon-Jones',
       author_email='edward.fauchon-jones@ligo.org',