diff --git a/CMakeLists.txt b/CMakeLists.txt
index 39289de..903e417 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,5 +1,5 @@
 cmake_minimum_required(VERSION 3.8)
-project(delaunator VERSION 0.3.0)
+project(delaunator VERSION 0.4.0)
 set (CMAKE_CXX_STANDARD 14)
 set(CMAKE_CXX_STANDARD_REQUIRED on)
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)