diff --git a/packages/ui/certd-server/src/controller/basic/app-controller.test.ts b/packages/ui/certd-server/src/controller/basic/app-controller.test.ts
new file mode 100644
index 000000000..95cd7f21c
--- /dev/null
+++ b/packages/ui/certd-server/src/controller/basic/app-controller.test.ts
@@ -0,0 +1,17 @@
+/// <reference types="mocha" />
+/// <reference types="node" />
+
+import assert from "node:assert/strict";
+
+import { normalizeReleaseVersion } from "./app-controller.js";
+
+describe("AppController.normalizeReleaseVersion", () => {
+  it("normalizes AtomGit release tag names", () => {
+    assert.equal(normalizeReleaseVersion({ tag_name: "v1.40.0" }), "1.40.0");
+    assert.equal(normalizeReleaseVersion({ tag_name: "1.40.0" }), "1.40.0");
+  });
+
+  it("falls back to release name when tag_name is empty", () => {
+    assert.equal(normalizeReleaseVersion({ name: "v1.40.0" }), "1.40.0");
+  });
+});
diff --git a/packages/ui/certd-server/src/controller/basic/app-controller.ts b/packages/ui/certd-server/src/controller/basic/app-controller.ts
index b77ac5c50..cf8aaf93a 100644
--- a/packages/ui/certd-server/src/controller/basic/app-controller.ts
+++ b/packages/ui/certd-server/src/controller/basic/app-controller.ts
@@ -3,6 +3,11 @@ import { BaseController, Constants, FileService, SysSettingsService, SysSiteInfo
 import { http, logger } from '@certd/basic';
 import { isComm } from '@certd/plus-core';
 
+export function normalizeReleaseVersion(release: { tag_name?: string; name?: string }) {
+  const version = release?.tag_name || release?.name || '';
+  return version.replace(/^v/i, '');
+}
+
 /**
  */
 @Provide()
@@ -17,12 +22,12 @@ export class AppController extends BaseController {
   async latest(): Promise<any> {
     try {
       const res = await http.request({
-        url: 'https://registry.npmmirror.com/@certd/pipeline',
+        url: 'https://api.atomgit.com/api/v5/repos/certd/certd/releases/latest',
         method: 'get',
         logRes: false,
         timeout: 5000,
       });
-      const latest = res['dist-tags'].latest;
+      const latest = normalizeReleaseVersion(res);
       return this.ok(latest);
     } catch (e: any) {
       logger.error(e);