diff --git a/sphinx/source/conf.py b/sphinx/source/conf.py
index b66d125438d0c935ddb60a63978d3288910de415..508e03456d017cece0c0cf5a761facddad1d9038 100644
--- a/sphinx/source/conf.py
+++ b/sphinx/source/conf.py
@@ -57,9 +57,9 @@ author = u'APS/SDM'
 # built documents.
 #
 # The short X.Y version.
-version = "2.3.0"
+version = "2.4.0"
 # The full version, including alpha/beta/rc tags.
-release = "2.3.0"
+release = "2.4.0"
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.