diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index ebccfda5..505cdbec 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -5,6 +5,18 @@ Versions are year-based with a strict backwards compatibility policy.
 The third digit is only for regressions.
 
 
+16.1.0 (UNRELEASED)
+-------------------
+
+Changes:
+^^^^^^^^
+
+*none*
+
+
+----
+
+
 16.0.0 (2016-05-23)
 -------------------
 
diff --git a/src/attr/__init__.py b/src/attr/__init__.py
index cf991e82..d8140b6f 100644
--- a/src/attr/__init__.py
+++ b/src/attr/__init__.py
@@ -23,7 +23,7 @@ from . import filters
 from . import validators
 
 
-__version__ = "16.0.0"
+__version__ = "16.1.0.dev0"
 
 __title__ = "attrs"
 __description__ = "Attributes without boilerplate."