diff --git a/CHANGES.rst b/CHANGES.rst
index 4263329..0f826be 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,6 +1,10 @@
 Changelog for Isso
 ==================
 
+0.12.2 (UNRELEASED)
+-------------------
+
+
 0.12.1 (2019-01-19)
 -------------------
 
diff --git a/docs/releasing.rst b/docs/releasing.rst
index 371651a..f124c74 100644
--- a/docs/releasing.rst
+++ b/docs/releasing.rst
@@ -6,5 +6,5 @@ Releasing steps
 * ``git commit -m "Preparing ${VERSION}" setup.py CHANGES.rst``
 * ``git tag -as ${VERSION}``
 * ``make init all``
-* ``./setup.py sdist``
-* ``twine upload dist/isso-${VERSION}.tar.gz``
+* ``python3 setup.py sdist``
+* ``twine upload --sign dist/isso-${VERSION}.tar.gz``
diff --git a/setup.py b/setup.py
index 45b01ae..dc321ff 100644
--- a/setup.py
+++ b/setup.py
@@ -15,7 +15,7 @@ elif (3, 0) <= sys.version_info < (3, 4):
 
 setup(
     name='isso',
-    version='0.12.1',
+    version='0.12.2dev0',
     author='Martin Zimmermann',
     author_email='info@posativ.org',
     packages=find_packages(),