diff --git a/Makefile b/Makefile
index 633f5ea..0044f9b 100644
--- a/Makefile
+++ b/Makefile
@@ -12,7 +12,7 @@
 # Those are the defaults; they can be over-ridden if specified
 # at en environment level or as 'make' arguments.
 BOTENV ?= botenv
-PYTHON_BIN ?= python3.9
+PYTHON_BIN ?= python3.11
 PIP_OUTPUT ?= -q