diff --git a/CMakeLists.txt b/CMakeLists.txt
index a579762..d21d7d4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,5 +1,5 @@
 cmake_minimum_required(VERSION 3.0)
-set(CFLTK_PROJECT_VERSION 1.4.30)
+set(CFLTK_PROJECT_VERSION 1.4.31)
 
 project(
   cfltk