diff --git a/.gitea/workflows/build-shadowsocks-rust.yaml b/.gitea/workflows/build-shadowsocks-rust.yaml
index 182208d..03e729a 100644
--- a/.gitea/workflows/build-shadowsocks-rust.yaml
+++ b/.gitea/workflows/build-shadowsocks-rust.yaml
@@ -29,6 +29,7 @@ jobs:
           platforms: |
             linux/amd64
             linux/arm64
+            linux/arm/v7
           push: true
           tags: |
             "gitea.woggioni.net/woggioni/sserver-rust:latest"
diff --git a/shadowsocks-rust/Dockerfile b/shadowsocks-rust/Dockerfile
index 20be851..cd57ca1 100644
--- a/shadowsocks-rust/Dockerfile
+++ b/shadowsocks-rust/Dockerfile
@@ -1,9 +1,9 @@
-FROM --platform=$TARGETPLATFORM rust:alpine AS builder
+FROM --platform=$TARGETPLATFORM alpine:latest AS builder
 
 ARG VERSION TARGETPLATFORM
 
 RUN set -x \
-    && apk add --no-cache build-base cmake llvm15-dev clang15-libclang clang15 rust-bindgen git
+    && apk add --no-cache build-base cmake llvm15-dev clang15-libclang clang15 rust-bindgen git rustup
 
 WORKDIR /root/shadowsocks-rust