diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 1b255bc..8805a01 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -1,3 +1,8 @@
+3.1
+---
+
+...
+
 3.0
 ---
 
diff --git a/apamax/log_analyzer.py b/apamax/log_analyzer.py
index 39c26e0..a7386af 100644
--- a/apamax/log_analyzer.py
+++ b/apamax/log_analyzer.py
@@ -19,7 +19,7 @@
 
 """
 
-__version__ = '3.0'
+__version__ = '3.1.dev'
 __date__ = '2019-10-18'
 __author__ = "Apama community"
 __license__ = "Apache 2.0"