diff --git a/blender_asset_tracer/__init__.py b/blender_asset_tracer/__init__.py
index 9a4a4e2..70a83ff 100644
--- a/blender_asset_tracer/__init__.py
+++ b/blender_asset_tracer/__init__.py
@@ -20,4 +20,4 @@
 
 # <pep8 compliant>
 
-__version__ = '0.4'
+__version__ = '0.5-dev'
diff --git a/docs/conf.py b/docs/conf.py
index 75e61b4..023170a 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -24,9 +24,9 @@ copyright = '2018, Sybren A. Stüvel'
 author = 'Sybren A. Stüvel'
 
 # The short X.Y version
-version = '0.4'
+version = '0.5-dev'
 # The full version, including alpha/beta/rc tags
-release = '0.4'
+release = '0.5-dev'
 
 
 # -- General configuration ---------------------------------------------------
diff --git a/setup.py b/setup.py
index 43006de..492ee4c 100644
--- a/setup.py
+++ b/setup.py
@@ -25,7 +25,7 @@ if sys.version_info < (3, 5):
 
 setup(
     name='blender-asset-tracer',
-    version='0.4',
+    version='0.5-dev',
     url='https://gitlab.com/dr.sybren/blender-asset-tracer',
     download_url='https://pypi.python.org/pypi/blender-asset-tracer',
     license='GPLv2+',