diff --git a/openpnm/__version__.py b/openpnm/__version__.py
index 0d4914da33..96b236a664 100644
--- a/openpnm/__version__.py
+++ b/openpnm/__version__.py
@@ -1 +1 @@
-__version__ = '3.2.1.dev4'
+__version__ = '3.3.0.dev0'
diff --git a/setup.cfg b/setup.cfg
index f922755fbc..368980f5e9 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 3.2.1.dev4
+current_version = 3.3.0.dev0
 parse = (?P<major>\d+)\.(?P<minor>\d+)\.(?P<patch>\d+)\.(?P<release>\D+)(?P<build>\d+)?
 serialize = {major}.{minor}.{patch}.{release}{build}