diff --git a/CMakeLists.txt b/CMakeLists.txt
index 78e8ef50..2c1d6d1e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,5 +1,5 @@
 # Main dcgp/dcgpy project version.
-set(DCGP_PROJECT_VERSION 1.2)
+set(DCGP_PROJECT_VERSION 1.2.1)
 
 # CMake version check.
 cmake_minimum_required(VERSION 3.2)