diff --git a/Dockerfile b/Dockerfile
index 42f5529b..ee7ed957 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3.9.7-slim-bullseye as build
+FROM python:3.10.6-slim-bullseye as build
 
 # Version of Datasette to install, e.g. 0.55
 #   docker build . -t datasette --build-arg VERSION=0.55