diff --git a/CHANGES.rst b/CHANGES.rst
index 4d229203..07e69240 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,5 +1,11 @@
 .. currentmodule:: flask
 
+Version 2.2.0
+-------------
+
+Unreleased
+
+
 Version 2.1.0
 -------------
 
diff --git a/src/flask/__init__.py b/src/flask/__init__.py
index e721eddd..f4b8c75c 100644
--- a/src/flask/__init__.py
+++ b/src/flask/__init__.py
@@ -42,4 +42,4 @@ from .signals import template_rendered as template_rendered
 from .templating import render_template as render_template
 from .templating import render_template_string as render_template_string
 
-__version__ = "2.1.0"
+__version__ = "2.2.0.dev0"