diff --git a/Dockerfile b/Dockerfile
index 9d7184b..d0ad214 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 # The devcontainer should use the developer target and run as root with podman
 # or docker with user namespaces.
-ARG PYTHON_VERSION=3.13@sha256:2deb0891ec3f643b1d342f04cc22154e6b6a76b41044791b537093fae00b6884
+ARG PYTHON_VERSION=3.15@sha256:df3f05ff4d74833f52146edd195c8f7913581b57796a820fb7e373457ace9bad
 FROM python:${PYTHON_VERSION} AS developer
 
 # Add any system dependencies for the developer/build environment here