diff --git a/rebulk/__version__.py b/rebulk/__version__.py
index b6828fd..c5c3223 100644
--- a/rebulk/__version__.py
+++ b/rebulk/__version__.py
@@ -4,4 +4,4 @@
 Version module
 """
 # pragma: no cover
-__version__ = '0.6.2'
+__version__ = '0.6.3.dev0'