diff --git a/cmake_support/FindPython.cmake b/cmake_support/FindPython.cmake
index 852c91d44dbc345a305aa08633d66b4f0a5d56e6..64e220bc60422b5116a27c040aa0a064af88a909 100644
--- a/cmake_support/FindPython.cmake
+++ b/cmake_support/FindPython.cmake
@@ -17,7 +17,7 @@
 # Author: Marco Biasini
 #-------------------------------------------------------------------------------
 
-set(PYTHON_VERSIONS 3.8 3.7 3.6 )
+set(PYTHON_VERSIONS 3.9 3.8 3.7 3.6 )
 set(PYTHON_MIN_VERSION 3.6.0)
 
 #-------------------------------------------------------------------------------