diff --git a/.gitea/workflows/build-shadowsocks-rust.yaml b/.gitea/workflows/build-shadowsocks-rust.yaml
index 03e729a..182208d 100644
--- a/.gitea/workflows/build-shadowsocks-rust.yaml
+++ b/.gitea/workflows/build-shadowsocks-rust.yaml
@@ -29,7 +29,6 @@ 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 cd57ca1..ff2ca2e 100644
--- a/shadowsocks-rust/Dockerfile
+++ b/shadowsocks-rust/Dockerfile
@@ -1,4 +1,4 @@
-FROM --platform=$TARGETPLATFORM alpine:latest AS builder
+FROM --platform=$TARGETPLATFORM rust:alpine AS builder
 
 ARG VERSION TARGETPLATFORM