diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6fc3fbd..505e6f6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,11 @@
 
 All notable changes to this project will be documented in this file.
 
+## 0.2.2 - 2026-07-13
+
+- Fix vivo signature verification for multiline release notes and descriptions by
+  matching the CRLF normalization performed during multipart serialization.
+
 ## 0.2.1 - 2026-07-13
 
 - Publish `shipup` to npm and document global installation.
diff --git a/package-lock.json b/package-lock.json
index 48da71b..c99ea27 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "shipup",
-  "version": "0.2.1",
+  "version": "0.2.2",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "shipup",
-      "version": "0.2.1",
+      "version": "0.2.2",
       "license": "0BSD",
       "dependencies": {
         "adm-zip": "^0.5.16",
diff --git a/package.json b/package.json
index 236364b..fd10b07 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "shipup",
-  "version": "0.2.1",
+  "version": "0.2.2",
   "description": "Cross-platform release CLI for App Store Connect, AppGallery Connect, and Android app markets",
   "type": "module",
   "bin": {
diff --git a/src/adapters/android/vivo/api.ts b/src/adapters/android/vivo/api.ts
index 77f3173..fb3e60f 100644
--- a/src/adapters/android/vivo/api.ts
+++ b/src/adapters/android/vivo/api.ts
@@ -40,12 +40,26 @@ function compareAsciiUpperCase(a: string, b: string): number {
  */
 export function signVivo(params: Record<string, string>, accessSecret: string): string {
   const str = Object.keys(params)
+    .filter((k) => k !== 'sign')
     .sort(compareAsciiUpperCase)
     .map((k) => `${k}=${params[k]}`)
     .join('&');
   return hmacSha256Hex(accessSecret, str);
 }
 
+/**
+ * WHATWG FormData 会在 multipart 序列化时把文本字段中的 CR/LF 统一为 CRLF。
+ * vivo 服务端按实际收到的字段值重算签名，因此必须在签名前做相同规范化；
+ * 否则多行 updateDesc/detailDesc 会因签名原文与线上字节不一致而返回 10001。
+ */
+function normalizeMultipartParams(params: Record<string, string>): Record<string, string> {
+  return Object.fromEntries(
+    Object.entries(params)
+      .filter(([k]) => k !== 'sign')
+      .map(([k, v]) => [k, v.replace(/\r\n|\r|\n/g, '\r\n')]),
+  );
+}
+
 /** 网关公共参数（timestamp 为毫秒，与 QQ 的秒不同）。 */
 function commonParams(accessKey: string, method: string): Record<string, string> {
   return {
@@ -66,9 +80,10 @@ async function postMultipart(
   timeoutMs: number,
   file?: { field: string; bytes: Uint8Array; filename: string },
 ): Promise<any> {
-  params.sign = signVivo(params, accessSecret);
+  const signedParams = normalizeMultipartParams(params);
+  signedParams.sign = signVivo(signedParams, accessSecret);
   const form = new FormData();
-  for (const [k, v] of Object.entries(params)) form.append(k, v);
+  for (const [k, v] of Object.entries(signedParams)) form.append(k, v);
   if (file) {
     form.append(file.field, new Blob([file.bytes]), file.filename);
   }
diff --git a/test/vivo.test.mjs b/test/vivo.test.mjs
new file mode 100644
index 0000000..e9b83d0
--- /dev/null
+++ b/test/vivo.test.mjs
@@ -0,0 +1,55 @@
+import assert from "node:assert/strict";
+import test from "node:test";
+import { signVivo, syncUpdateApp } from "../dist/adapters/android/vivo/api.js";
+
+test("vivo multipart 签名使用实际发送的 CRLF 多行文本", async () => {
+  const originalFetch = globalThis.fetch;
+  const originalNow = Date.now;
+  let requested = false;
+
+  Date.now = () => 1_700_000_000_000;
+  globalThis.fetch = async (_url, init) => {
+    requested = true;
+    assert.ok(init.body instanceof FormData);
+
+    const params = {};
+    for (const [key, value] of init.body.entries()) {
+      assert.equal(typeof value, "string");
+      params[key] = String(value);
+    }
+
+    const signature = params.sign;
+    delete params.sign;
+    assert.equal(params.updateDesc, "第一行\r\n第二行\r\n第三行\r\n第四行");
+    assert.equal(signature, signVivo(params, "secret"));
+
+    return new Response(JSON.stringify({ code: 0, subCode: "0", msg: "成功" }), {
+      status: 200,
+    });
+  };
+
+  try {
+    await syncUpdateApp({
+      accessKey: "access-key",
+      accessSecret: "secret",
+      packageName: "com.example.app",
+      versionCode: "123",
+      apkMd5: "0123456789abcdef0123456789abcdef",
+      apkSerialNumber: "apk-serial",
+      updateDesc: "第一行\n第二行\r第三行\r\n第四行",
+      timeoutMs: 10_000,
+    });
+  } finally {
+    globalThis.fetch = originalFetch;
+    Date.now = originalNow;
+  }
+
+  assert.equal(requested, true);
+});
+
+test("vivo 重签时不把旧 sign 参与签名", () => {
+  assert.equal(
+    signVivo({ a: "1", sign: "old-signature" }, "secret"),
+    signVivo({ a: "1" }, "secret"),
+  );
+});