diff --git a/src/sakia/__init__.py b/src/sakia/__init__.py
index 42730d713de22620909bf2321ab95a7513a8e15e..ef8108ef9c444af5ebcf063e0e46babc01e53361 100644
--- a/src/sakia/__init__.py
+++ b/src/sakia/__init__.py
@@ -1,2 +1,2 @@
-__version_info__ = ('0', '20', '0')
+__version_info__ = ('0', '20', '0dev1')
 __version__ = '.'.join(__version_info__)