diff --git a/CMakeLists.txt b/CMakeLists.txt
index daeba8b..510add6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,7 @@
 cmake_minimum_required(VERSION 3.1)
 enable_testing()
 
-project(toml11 VERSION 3.3.1)
+project(toml11 VERSION 3.4.0)
 
 option(toml11_BUILD_TEST "Build toml tests" ON)
 option(toml11_TEST_WITH_ASAN  "use LLVM address sanitizer" OFF)