diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index fd438ead..1d598e09 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -5,6 +5,31 @@ Versions follow `CalVer <http://calver.org>`_ with a strict backwards compatibil
 The third digit is only for regressions.
 
 
+17.2.0 (UNRELEASED)
+-------------------
+
+
+Backward-incompatible changes:
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+*none*
+
+
+Deprecations:
+^^^^^^^^^^^^^
+
+*none*
+
+
+Changes:
+^^^^^^^^
+
+*none*
+
+
+----
+
+
 17.1.0 (2017-05-16)
 -------------------
 
diff --git a/src/attr/__init__.py b/src/attr/__init__.py
index 545ae0e6..ca8d1b3c 100644
--- a/src/attr/__init__.py
+++ b/src/attr/__init__.py
@@ -27,7 +27,7 @@ from . import converters
 from . import validators
 
 
-__version__ = "17.1.0"
+__version__ = "17.2.0.dev0"
 
 __title__ = "attrs"
 __description__ = "Classes Without Boilerplate"