diff --git a/Dockerfile b/Dockerfile
index 88a34922..4c57c884 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # Use the maximum Python version tested
-FROM python:3.11-slim
+FROM python:3.12-slim
 
 # linkchecker creates $XDG_CONFIG_HOME/linkchecker/ (700) containing linkcheckerrc et al
 ENV HOME /tmp