diff --git a/CHANGES.md b/CHANGES.md
index f89a593..f242202 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,6 +1,12 @@
 Changelog for extract-dtb
 =========================
 
+1.3 (unreleased)
+----------------
+
+- Nothing changed yet.
+
+
 1.2 (2021-03-05)
 ----------------
 
diff --git a/setup.py b/setup.py
index 9c4dc4a..e734360 100755
--- a/setup.py
+++ b/setup.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 from setuptools import setup
 
-version = "1.2"
+version = "1.3.dev0"
 
 
 setup(