diff --git a/Dockerfile b/Dockerfile
index f9db47c..c26fb98 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-ARG PYTHON_VERSION=3.9 LINUX_VERSION=
+ARG PYTHON_VERSION=3.10 LINUX_VERSION=
 FROM python:${PYTHON_VERSION}${LINUX_VERSION:+-$LINUX_VERSION} AS base
 LABEL org.opencontainers.image.authors="Brendon Smith <bws@bws.bio>"
 LABEL org.opencontainers.image.description="Docker images and utilities to power your Python APIs and help you ship faster."