diff --git a/src/desktop/appupdate.js b/src/desktop/appupdate.js
index 6edfd8a..0ed9faa 100644
--- a/src/desktop/appupdate.js
+++ b/src/desktop/appupdate.js
@@ -9,6 +9,7 @@ import { launchMacInstaller } from './macappupdate.js'
 import { launchWindowsInstaller } from './winappupdate.js'
 import { checkForDuplicateInstallations } from './check-duplicate-installations.js'
 import { scheduleAppRestart } from './updater-runner.js'
+import buildInfo from '../buildInfo.json'
 import { getAppSettings, setAppSettings } from './store.js'
 
 const SUPPORTED_TARGETS = {
@@ -215,8 +216,30 @@ const downloadArtifact = async (artifact, destinationPath, sendProgress) => {
 const getRunningEngine = (mainWindow) =>
   mainWindow?.renderer === 'cef' ? 'chromium' : 'native'
 
+const formatFullAppVersion = (version, buildNumber) => {
+  const normalizedVersion = String(version || '')
+    .trim()
+    .replace(/^v/i, '')
+
+  if (!normalizedVersion) return null
+
+  const build = String(
+    buildNumber || process.env.BUILD_NUMBER || process.env.VITE_BUILD_NUMBER || ''
+  ).trim()
+  const buildSuffix =
+    !build || build === 'dev' ? 'dev' : build.startsWith('b') ? build : `b${build}`
+
+  return `v${normalizedVersion}-${buildSuffix}`
+}
+
+const getRunningAppVersion = () =>
+  formatFullAppVersion(
+    process.env.ELECTROBUN_VERSION,
+    buildInfo?.buildNumber
+  )
+
 const getRunningAppState = (mainWindow, settings) => ({
-  version: process.env.ELECTROBUN_VERSION || null,
+  version: getRunningAppVersion(),
   branch: settings?.appUpdateRunningBranch || null,
   engine: getRunningEngine(mainWindow)
 })