diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 49acbc6..a8a48a6 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -1,6 +1,13 @@
 Changelog
 =========
 
+.. _v2-2:
+
+2.2 - `master`_
+~~~~~~~~~~~~~~~
+
+.. note:: This version is not yet released and is under active development.
+
 
 .. _v2-1:
 
diff --git a/src/cryptography/__about__.py b/src/cryptography/__about__.py
index 3775996..ee16ac8 100644
--- a/src/cryptography/__about__.py
+++ b/src/cryptography/__about__.py
@@ -14,7 +14,7 @@
                " and primitives to Python developers.")
 __uri__ = "https://github.com/pyca/cryptography"
 
-__version__ = "2.1"
+__version__ = "2.2.dev1"
 
 __author__ = "The cryptography developers"
 __email__ = "cryptography-dev@python.org"
diff --git a/vectors/cryptography_vectors/__about__.py b/vectors/cryptography_vectors/__about__.py
index d1a0145..466a016 100644
--- a/vectors/cryptography_vectors/__about__.py
+++ b/vectors/cryptography_vectors/__about__.py
@@ -14,7 +14,7 @@
 
 __uri__ = "https://github.com/pyca/cryptography"
 
-__version__ = "2.1"
+__version__ = "2.2.dev1"
 
 __author__ = "The cryptography developers"
 __email__ = "cryptography-dev@python.org"