diff --git a/_pytest/__init__.py b/_pytest/__init__.py
index 378561b75..fd5b3dd37 100644
--- a/_pytest/__init__.py
+++ b/_pytest/__init__.py
@@ -1,2 +1,2 @@
 #
-__version__ = '2.6.4.dev1'
+__version__ = '2.7.0.dev1'
diff --git a/setup.py b/setup.py
index 02d3100f5..7a1cc281e 100644
--- a/setup.py
+++ b/setup.py
@@ -27,7 +27,7 @@ def main():
         name='pytest',
         description='pytest: simple powerful testing with Python',
         long_description=long_description,
-        version='2.6.4.dev1',
+        version='2.7.0.dev1',
         url='http://pytest.org',
         license='MIT license',
         platforms=['unix', 'linux', 'osx', 'cygwin', 'win32'],