diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index f751b3e1..d32ad19e 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 3.0.2
+current_version = 4.0.0
 files = setup.py dddm/__init__.py
 commit = True
 tag = True
diff --git a/dddm/__init__.py b/dddm/__init__.py
index 8ac166a5..1f750c86 100644
--- a/dddm/__init__.py
+++ b/dddm/__init__.py
@@ -1,4 +1,4 @@
-__version__ = '3.0.2'
+__version__ = '4.0.0'
 
 from .utils import *
 
diff --git a/setup.py b/setup.py
index 01f4114d..6ab4469e 100644
--- a/setup.py
+++ b/setup.py
@@ -15,7 +15,7 @@ def open_requirements(path):
 
 setuptools.setup(
     name='dddm',
-    version='3.0.2',
+    version='4.0.0',
     description='Direct Detection of Dark Matter: '
                 'Probing the complementarity of several targets for dark matter detection',
     long_description=readme + '\n\n' + history,