begin work on v2.3.1
diff --git a/docs/changelog.rst b/docs/changelog.rst
index 8f0f8ef..f99d351 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -6,6 +6,12 @@
 Starting with version 1.8.0, pybind11 releases use a `semantic versioning
 <http://semver.org>`_ policy.
 
+
+v2.3.1 (Not yet released)
+-----------------------------------------------------
+
+* TBA
+
 v2.3.0 (June 11, 2019)
 -----------------------------------------------------
 
diff --git a/docs/conf.py b/docs/conf.py
index 868f960..d17e4ba 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -63,7 +63,7 @@
 # The short X.Y version.
 version = '2.3'
 # The full version, including alpha/beta/rc tags.
-release = '2.3.dev0'
+release = '2.3.dev1'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.