diff --git a/Containerfile b/Containerfile
index 9b4508b..70d26a5 100644
--- a/Containerfile
+++ b/Containerfile
@@ -26,7 +26,7 @@ ARG PACKAGE_INDEX=https://pypi.org/simple
 ARG DEBIAN_UPGRADE=true
 
 # uv, only to install the locked dependencies; it never reaches a final image.
-FROM ghcr.io/astral-sh/uv:0.12.18@sha256:3adc3706091ce7c2fe595e669628caedd6d951551b92b258b7e7dbe06d9440bc AS uv
+FROM ghcr.io/astral-sh/uv:0.13.5@sha256:32a7bb39b496babbd997b0a39a4d66c126bdaf5661b302bf6f06abda8deca6ff AS uv
 
 # Build: the tool and its locked dependencies, into a virtual environment at /opt/ldo.
 FROM docker.io/library/python:3.14-slim-trixie@sha256:caaf356f40667c496d405780745b9ac25771c189a51dfcc42430d531ea09f8a2 AS build