diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 99d8ab28..cc0661cf 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -1,6 +1,12 @@
 Changelog for pymt
 ==================
 
+1.2.2 (unreleased)
+------------------
+
+- Nothing changed yet.
+
+
 1.2.1 (2020-09-22)
 ------------------
 
diff --git a/setup.py b/setup.py
index 9259b9c6..c64b64ce 100644
--- a/setup.py
+++ b/setup.py
@@ -26,7 +26,7 @@ def read(filename):
 
 setup(
     name="pymt",
-    version="1.2.1",
+    version="1.2.2.dev0",
     description="The CSDMS Python Modeling Toolkit",
     long_description=long_description,
     author="Eric Hutton",