diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2e0c273..75a8255 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,7 @@
 cmake_minimum_required(VERSION 3.5)
 
 
-project(inja LANGUAGES CXX VERSION 3.3.0)
+project(inja LANGUAGES CXX VERSION 3.4.0)
 
 
 option(INJA_USE_EMBEDDED_JSON "Use the shipped json header if not available on the system" ON)
diff --git a/doc/Doxyfile b/doc/Doxyfile
index d00832e..daf904d 100644
--- a/doc/Doxyfile
+++ b/doc/Doxyfile
@@ -38,7 +38,7 @@ PROJECT_NAME           = "Inja"
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 3.3.0
+PROJECT_NUMBER         = 3.4.0
 
 # 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/include/inja/inja.hpp b/include/inja/inja.hpp
index 5c667ab..63e76da 100644
--- a/include/inja/inja.hpp
+++ b/include/inja/inja.hpp
@@ -1,5 +1,5 @@
 /*
-  ___        _          Version 3.3
+  ___        _          Version 3.4.0
  |_ _|_ __  (_) __ _    https://github.com/pantor/inja
   | || '_ \ | |/ _` |   Licensed under the MIT License <http://opensource.org/licenses/MIT>.
   | || | | || | (_| |
diff --git a/meson.build b/meson.build
index 3103df0..bfed780 100644
--- a/meson.build
+++ b/meson.build
@@ -1,7 +1,7 @@
 project(
   'inja',
   'cpp',
-  version: '3.3.0',
+  version: '3.4.0',
   default_options: ['cpp_std=c++17', 'warning_level=3'],
   meson_version: '>=0.56'
 )
diff --git a/single_include/inja/inja.hpp b/single_include/inja/inja.hpp
index 2a27884..b737824 100644
--- a/single_include/inja/inja.hpp
+++ b/single_include/inja/inja.hpp
@@ -1,5 +1,5 @@
 /*
-  ___        _          Version 3.3
+  ___        _          Version 3.4.0
  |_ _|_ __  (_) __ _    https://github.com/pantor/inja
   | || '_ \ | |/ _` |   Licensed under the MIT License <http://opensource.org/licenses/MIT>.
   | || | | || | (_| |