diff --git a/CMakeLists.txt b/CMakeLists.txt
index 042ea5d..17ea724 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -21,7 +21,7 @@
 
 cmake_minimum_required(VERSION 3.2)
 
-project(args LANGUAGES CXX VERSION 6.4.3 DESCRIPTION "A flexible single-header C++11 argument parsing library that is designed to appear somewhat similar to Python's argparse" HOMEPAGE_URL "https://github.com/Taywee/args")
+project(args LANGUAGES CXX VERSION 6.4.5 DESCRIPTION "A flexible single-header C++11 argument parsing library that is designed to appear somewhat similar to Python's argparse" HOMEPAGE_URL "https://github.com/Taywee/args")
 
 include(GNUInstallDirs)
 
diff --git a/Doxyfile b/Doxyfile
index db12239..afa1165 100644
--- a/Doxyfile
+++ b/Doxyfile
@@ -38,7 +38,7 @@ PROJECT_NAME           = "args"
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 6.4.3
+PROJECT_NUMBER         = 6.4.5
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
diff --git a/args.hxx b/args.hxx
index 25f4127..6d641f7 100644
--- a/args.hxx
+++ b/args.hxx
@@ -33,10 +33,10 @@
 #ifndef ARGS_HXX
 #define ARGS_HXX
 
-#define ARGS_VERSION "6.4.3"
+#define ARGS_VERSION "6.4.5"
 #define ARGS_VERSION_MAJOR 6
 #define ARGS_VERSION_MINOR 4
-#define ARGS_VERSION_PATCH 3
+#define ARGS_VERSION_PATCH 5
 
 #include <algorithm>
 #include <iterator>
diff --git a/conanfile.py b/conanfile.py
index f5d2404..ccec3f3 100644
--- a/conanfile.py
+++ b/conanfile.py
@@ -2,7 +2,7 @@
 
 class ArgsConan(ConanFile):
     name = "args"
-    version = "6.4.3"
+    version = "6.4.5"
     url = "https://github.com/Taywee/args"
     description = "A simple header-only C++ argument parser library."
     license = "MIT"
diff --git a/meson.build b/meson.build
index bfc9adc..ed315df 100644
--- a/meson.build
+++ b/meson.build
@@ -1,5 +1,5 @@
 project('args.hxx', ['cpp'],
-  version: '6.4.3',
+  version: '6.4.5',
   default_options: 'cpp_std=c++11',
   license: 'MIT'
 )