diff --git a/.woodpecker/linux-release.yml b/.woodpecker/linux-release.yml
index 727233a..5f2a2e3 100644
--- a/.woodpecker/linux-release.yml
+++ b/.woodpecker/linux-release.yml
@@ -15,6 +15,17 @@ when:
 concurrency: 1
 
 steps:
+  # 前端只构建一次：两个架构的 Backend 构建并行跑在同一个工作目录里，各自 npm ci 会互相删 node_modules（ENOTEMPTY），
+  # 一个失败还会把另一个的构建进程一起杀掉。Backend 把 web/*/dist 内嵌进程序（展示端和管理端由面板自己提供）。
+  - name: web-build
+    image: bash
+    environment:
+      NPM_CONFIG_CACHE: /home/justme/.npm
+    commands:
+      - npm ci --prefix web --prefer-offline
+      - npm run build --prefix web
+    depends_on: []
+
   - name: linux-amd64-backend
     image: bash
     environment:
@@ -25,7 +36,8 @@ steps:
         from_secret: zot_secret
     commands:
       - bash ci/release-linux.sh amd64 backend
-    depends_on: []
+    depends_on:
+      - web-build
 
   - name: linux-arm64-backend
     image: bash
@@ -37,7 +49,8 @@ steps:
         from_secret: zot_secret
     commands:
       - bash ci/release-linux.sh arm64 backend
-    depends_on: []
+    depends_on:
+      - web-build
 
   - name: backend-multiarch-index
     image: bash
diff --git a/backend/Directory.Build.props b/backend/Directory.Build.props
index ed79b1b..7c03aee 100644
--- a/backend/Directory.Build.props
+++ b/backend/Directory.Build.props
@@ -13,7 +13,7 @@
     <UseArtifactsOutput>true</UseArtifactsOutput>
     <ArtifactsPath>$(MSBuildThisFileDirectory)artifacts</ArtifactsPath>
     <Deterministic>true</Deterministic>
-    <Version>0.3.0</Version>
+    <Version>0.3.1</Version>
     <NuGetAudit>false</NuGetAudit>
   </PropertyGroup>
   <ItemGroup>
diff --git a/ci/release-linux.sh b/ci/release-linux.sh
index b71a684..2d403e3 100644
--- a/ci/release-linux.sh
+++ b/ci/release-linux.sh
@@ -53,8 +53,11 @@ export MOSHIRO_COMMIT="${MOSHIRO_COMMIT:-${CI_COMMIT_SHA:0:10}}"
 export MOSHIRO_BUILT_AT="${MOSHIRO_BUILT_AT:-$(date -u +%Y-%m-%dT%H:%M:%SZ)}"
 
 # 前端先构建：Backend.Api 在 web/*/dist 存在时把它们内嵌进程序（展示端 /，管理端 /admin/），这样 passkey 能绑定在面板自己的域名上
-if [[ -z "${NPM_CONFIG_CACHE:-}" && -d /home/justme/.npm ]]; then export NPM_CONFIG_CACHE=/home/justme/.npm; fi
-(cd "$root" && npm ci --prefix web --prefer-offline && npm run build --prefix web)
+# 发版流水线里有单独的 web-build 步骤先构建好了（并行的两个架构不能同时 npm ci）；main 的 [CI] 构建只有一个 Backend 步骤，这里自己构建
+if [[ ! -f "$root/web/display/dist/index.html" || ! -f "$root/web/admin/dist/index.html" ]]; then
+  if [[ -z "${NPM_CONFIG_CACHE:-}" && -d /home/justme/.npm ]]; then export NPM_CONFIG_CACHE=/home/justme/.npm; fi
+  (cd "$root" && npm ci --prefix web --prefer-offline && npm run build --prefix web)
+fi
 [[ -f "$root/web/display/dist/index.html" && -f "$root/web/admin/dist/index.html" ]] || { echo "the web build did not produce both apps" >&2; exit 1; }
 
 (cd "$root/backend" && dotnet publish src/MoShiro.Backend \
diff --git a/web/package.json b/web/package.json
index 9cce86f..ccd3fc1 100644
--- a/web/package.json
+++ b/web/package.json
@@ -1,7 +1,7 @@
 {
   "name": "moshiro-web",
   "private": true,
-  "version": "0.3.0",
+  "version": "0.3.1",
   "workspaces": [
     "display",
     "admin"