diff --git a/boot/Dockerfile b/boot/Dockerfile
index c24c27c1..0cbb3eab 100644
--- a/boot/Dockerfile
+++ b/boot/Dockerfile
@@ -75,7 +75,7 @@ RUN set -e; \
     fi; \
     gcc usr/gen_init_cpio.c -o /usr/local/bin/gen_init_cpio
 
-FROM rust:1.98.0-alpine@sha256:a10e64dd139b7387337c7fbe8aca31b959b57b2fd4c8ae20a02cf1d6ea424dce AS initbuild
+FROM rust:1.98.1-alpine@sha256:7cc1c22d77d9432f7fe012a70e6d3e555af54c2a6832700ed7d553f1769ae89f AS initbuild
 RUN apk add --no-cache musl-dev
 WORKDIR /build
 # See silkd/Dockerfile: the pin, not the base image's default, is the compiler.