diff --git a/Dockerfile b/Dockerfile
index 2643683..7a41ab9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,7 +3,7 @@
 # The :tag is kept alongside the digest for human readability; Dependabot's
 # docker ecosystem keeps the digest fresh. Refresh with:
 #   docker buildx imagetools inspect <image> --format '{{.Manifest.Digest}}'
-FROM rust:1.97-slim@sha256:466074ef42a9485c726d71017fa629f1954cd5e09b473dcd00467ddc6afdc753 AS builder
+FROM rust:1.97-slim@sha256:5c6f46a6e4472ab1ca7ba7d494e6677f2f219ebc02f32025d3986f057635ec9c AS builder
 
 WORKDIR /app