diff --git a/Dockerfile b/Dockerfile
index 99c5942..12774dc 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-ARG venv_python
+ARG venv_python=3.12
 FROM python:${venv_python}
 
 LABEL Maintainer="CanDIG Project"