diff --git a/dockerfiles/rustup-mirror/Dockerfile b/dockerfiles/rustup-mirror/Dockerfile
index 45731f6..f3e0d4d 100644
--- a/dockerfiles/rustup-mirror/Dockerfile
+++ b/dockerfiles/rustup-mirror/Dockerfile
@@ -1,4 +1,4 @@
-FROM rust:1.39.0
+FROM rust:buster
 MAINTAINER Jiajie Chen <jiegec@noc.ac.cn>
 
 RUN cargo install rustup-mirror