diff --git a/rosdoc2/__init__.py b/rosdoc2/__init__.py
index fe0fbf6..7c62346 100644
--- a/rosdoc2/__init__.py
+++ b/rosdoc2/__init__.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = '0.2.0'
+__version__ = '0.2.1.dev0'