diff --git a/doc/source/changelog.rst b/doc/source/changelog.rst
index 3f698ed..d91a504 100644
--- a/doc/source/changelog.rst
+++ b/doc/source/changelog.rst
@@ -3,6 +3,18 @@
 ChangeLog
 =========
 
+Version 4.3.1
+-------------
+
+This version of pyXSIM contains a bugfix and updates compatibility with other
+packages.
+
+* The minimum required version of yt has been bumped up to 4.3.0.
+* Cython 3.0 is now supported as a compile-time dependency for those building
+  pyXSIM from source.
+* A subtle bug that caused photons created from cells or particles on the edges
+  of input regions to be scattered to large distances has been fixed.
+
 Version 4.3.0
 -------------
 
diff --git a/doc/source/conf.py b/doc/source/conf.py
index c9ea7d2..03e4116 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -72,7 +72,7 @@
 
 # General information about the project.
 project = "pyXSIM"
-copyright = "2023, John ZuHone"
+copyright = "2024, John ZuHone"
 author = "John ZuHone"
 
 # The version info for the project you're documenting, acts as replacement for
@@ -80,9 +80,9 @@
 # built documents.
 #
 # The short X.Y version.
-version = "4.3.0"
+version = "4.3.1"
 # The full version, including alpha/beta/rc tags.
-release = "4.3.0"
+release = "4.3.1"
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/doc/source/index.rst b/doc/source/index.rst
index 315adf9..4e40226 100644
--- a/doc/source/index.rst
+++ b/doc/source/index.rst
@@ -44,7 +44,7 @@ pyXSIM is released under a
 Current Version
 ---------------
 
-The current stable version is 4.3.0. See the :ref:`changelog` for details on
+The current stable version is 4.3.1. See the :ref:`changelog` for details on
 changes from previous versions.
 
 Table of Contents