diff --git a/CMakeLists.txt b/CMakeLists.txt
index ecd857adf..68bb71f4a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -8,7 +8,7 @@ include(EthPolicy)
 eth_policy()
 
 # project name and version should be set after cmake_policy CMP0048
-set(PROJECT_VERSION "0.4.8")
+set(PROJECT_VERSION "0.4.9")
 project(solidity VERSION ${PROJECT_VERSION})
 
 # Let's find our dependencies
diff --git a/Changelog.md b/Changelog.md
index b8effc19f..a5c4b922f 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,3 +1,5 @@
+### 0.4.9 (unreleased)
+
 ### 0.4.8 (2017-01-13)
 
 Features:
diff --git a/docs/conf.py b/docs/conf.py
index ecabbb861..85fc36776 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -56,9 +56,9 @@ copyright = '2016, Ethereum'
 # built documents.
 #
 # The short X.Y version.
-version = '0.4.8'
+version = '0.4.9'
 # The full version, including alpha/beta/rc tags.
-release = '0.4.8-develop'
+release = '0.4.9-develop'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.