diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6d634c6..f0e6179 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,5 +1,5 @@
 cmake_minimum_required (VERSION 3.0)
-project (libtree VERSION 1.0.4)
+project (libtree VERSION 1.1.1)
 
 include(GNUInstallDirs)
 include(CTest)