diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index 1e8ba55b..82d9ee04 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,7 +1,7 @@
 [bumpversion]
 commit = True
 tag = True
-current_version = 0.3.2
+current_version = 0.3.3-dev
 parse = (?P<major>\d+)\.(?P<minor>\d+)(\.(?P<patch>\d+))?(\-(?P<release>\w+))?
 serialize = 
 	{major}.{minor}.{patch}-{release}
diff --git a/setup.py b/setup.py
index ea9f3169..9660d6ea 100644
--- a/setup.py
+++ b/setup.py
@@ -13,7 +13,7 @@
 URL                 = 'https://github.com/jni/skan'
 LICENSE             = 'BSD 3-clause'
 DOWNLOAD_URL        = 'https://github.com/jni/skan'
-VERSION             = '0.3.2'
+VERSION             = '0.3.3-dev'
 PYTHON_VERSION      = (3, 5)
 INST_DEPENDENCIES   = {} 
 
diff --git a/skan/__init__.py b/skan/__init__.py
index 45ed99d4..55d18217 100644
--- a/skan/__init__.py
+++ b/skan/__init__.py
@@ -1,6 +1,6 @@
 from .csr import skeleton_to_csgraph, branch_statistics, summarise
 
-__version__ = '0.3.2'
+__version__ = '0.3.3-dev'
 
 __all__ = ['skeleton_to_csgraph',
            'branch_statistics',