diff --git a/Dockerfile b/Dockerfile
index bf5aac7..c2969ec 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,7 +8,7 @@ RUN --mount=type=cache,target=/app/frontend/node_modules \
     npm run build
 
 # output backend binary in /app/web
-FROM rust:1.97 AS build-backend
+FROM rust:1.98 AS build-backend
 COPY backend /app/backend
 WORKDIR /app/backend
 RUN --mount=type=cache,target=/usr/local/cargo/registry \