diff --git a/setup.cfg b/setup.cfg
index 388aa38a5..8b0553d28 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 c35a082bb..34d746154 100644
--- a/setup.py
+++ b/setup.py
@@ -23,7 +23,7 @@
     README = readme.read()
 
 # *IMPORTANT*: Don't manually change the version here. Use the 'bumpversion' utility.
-VERSION = '0.3.0'
+VERSION = '0.4.0'
 
 setup(
     name="d3a",