diff --git a/prj/script/common.cmd b/prj/script/common.cmd
index 7544aee..1feb395 100644
--- a/prj/script/common.cmd
+++ b/prj/script/common.cmd
@@ -5,4 +5,4 @@ REM define (relative) paths
 set script_dir=%~dp0
 set venv_dir=%script_dir%\..\venv
 set pip_reqs_dir=%script_dir%\..\pip_reqs
-set py_ver="3.11"
+set py_ver="3.12"
diff --git a/prj/script/common.sh b/prj/script/common.sh
index 1cfcf1f..0e07f18 100755
--- a/prj/script/common.sh
+++ b/prj/script/common.sh
@@ -3,4 +3,4 @@
 script_dir=$(dirname "$0")
 venv_dir=${script_dir}/../venv
 pip_reqs_dir=${script_dir}/../pip_reqs
-py_ver="3.11"
+py_ver="3.12"