diff --git a/CPP/CMakeLists.txt b/CPP/CMakeLists.txt
index 84f8e263..af12a390 100644
--- a/CPP/CMakeLists.txt
+++ b/CPP/CMakeLists.txt
@@ -1,5 +1,5 @@
 cmake_minimum_required(VERSION 3.15)
-project(Clipper2 VERSION 1.2.2 LANGUAGES C CXX)
+project(Clipper2 VERSION 1.2.3 LANGUAGES C CXX)
 
 set(CMAKE_POSITION_INDEPENDENT_CODE ON)
 if(NOT DEFINED CMAKE_CXX_STANDARD OR CMAKE_CXX_STANDARD LESS 17)
diff --git a/CPP/Clipper2Lib/include/clipper2/clipper.engine.h b/CPP/Clipper2Lib/include/clipper2/clipper.engine.h
index 5aca121b..6d97539f 100644
--- a/CPP/Clipper2Lib/include/clipper2/clipper.engine.h
+++ b/CPP/Clipper2Lib/include/clipper2/clipper.engine.h
@@ -1,6 +1,6 @@
 /*******************************************************************************
 * Author    :  Angus Johnson                                                   *
-* Date      :  26 July 2023                                                    *
+* Date      :  6 October 2023                                                  *
 * Website   :  http://www.angusj.com                                           *
 * Copyright :  Angus Johnson 2010-2023                                         *
 * Purpose   :  This is the main polygon clipping module                        *
@@ -10,7 +10,7 @@
 #ifndef CLIPPER_ENGINE_H
 #define CLIPPER_ENGINE_H
 
-constexpr auto CLIPPER2_VERSION = "1.2.2";
+constexpr auto CLIPPER2_VERSION = "1.2.3";
 
 #include <cstdlib>
 #include <stdint.h> //#541