diff --git a/binary-builder-musl/Dockerfile b/binary-builder-musl/Dockerfile
index 18576c7..5575dce 100644
--- a/binary-builder-musl/Dockerfile
+++ b/binary-builder-musl/Dockerfile
@@ -1,7 +1,7 @@
 # The SHA below is rust:1.80.1-alpine3.19, fixing to a specific SHA
 # rather than a mutable tag, stops rebuilds completely changing the
 # contents of the container without us realising.
-FROM rust@sha256:b3ac1f65cf33390407c9b90558eb41e7a8311c47d836fca5800960f1aa2d11d5
+FROM rust@sha256:a21d54019c66e3a1e7512651e9a7de99b08f28d49b023ed7220b7fe4d3b9f24e
 
 # Update packages and package manager to keep us current
 RUN apk update && apk upgrade