diff --git a/docs/changelog.rst b/docs/changelog.rst
index 0900599f..0e30cf30 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -1,9 +1,12 @@
 Changelog
 ---------
+2.2.4
+^^^^^
+- Skip duplicated extended characters.
+
 2.2.3
 ^^^^^
-- Add new substitute character to ignore before extended character
-    in SCC input files
+- Add new substitute character to ignore before extended character in SCC input files
 
 2.2.2
 ^^^^^
diff --git a/docs/conf.py b/docs/conf.py
index 56adf280..3d8b4b2a 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -53,9 +53,9 @@
 # built documents.
 #
 # The short X.Y version.
-version = '2.2.3'
+version = '2.2.4'
 # The full version, including alpha/beta/rc tags.
-release = '2.2.3'
+release = '2.2.4'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/setup.py b/setup.py
index 312a170c..a5c792db 100644
--- a/setup.py
+++ b/setup.py
@@ -24,7 +24,7 @@
 
 setup(
     name='pycaption',
-    version='2.2.3',
+    version='2.2.4.dev',
     description='Closed caption converter',
     long_description=open(README_PATH).read(),
     author='Joe Norton',