diff --git a/deploy/docker/Dockerfile b/deploy/docker/Dockerfile
index db3bb1a..4dbe27c 100644
--- a/deploy/docker/Dockerfile
+++ b/deploy/docker/Dockerfile
@@ -33,7 +33,7 @@ COPY frontend/ ./
 RUN npm run build
 
 # --- cargo-chef base (shared toolchain + build deps) ---
-FROM rust:1.97.1-slim AS chef
+FROM rust:1.98.0-slim AS chef
 WORKDIR /app
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \