diff --git a/frontend/src/App.jsx b/frontend/src/App.jsx
index da7f462..9717000 100644
--- a/frontend/src/App.jsx
+++ b/frontend/src/App.jsx
@@ -47,7 +47,7 @@ const analyticsConsentVersion = 3
 const themePreferenceKey = 'tssbot.theme'
 const themePreferenceCookie = 'tssbot_theme'
 const liveRefreshMs = 15000
-const siteVersion = '1.0.1'
+const siteVersion = import.meta.env.VITE_SITE_VERSION || '1.0.0'
 
 const turnstileSiteKey = import.meta.env.VITE_TURNSTILE_SITE_KEY || ''
 const siteGateEnabled = String(import.meta.env.VITE_SITE_GATE || 'false').toLowerCase() === 'true'
diff --git a/vite.config.js b/vite.config.js
index 1a53dbe..d6bab3a 100644
--- a/vite.config.js
+++ b/vite.config.js
@@ -1,10 +1,24 @@
 import path from 'node:path'
+import { execSync } from 'node:child_process'
 import { defineConfig, loadEnv } from 'vite'
 import react from '@vitejs/plugin-react'
 import tailwindcss from '@tailwindcss/vite'
 
 const MAX_TEAM_NAME_LENGTH = 80
 
+function siteVersion() {
+  try {
+    const count = execSync('git rev-list --count HEAD', {
+      cwd: __dirname,
+      encoding: 'utf8',
+      stdio: ['ignore', 'pipe', 'ignore'],
+    }).trim()
+    return `1.0.${Number(count) || 0}`
+  } catch {
+    return '1.0.0'
+  }
+}
+
 function isAllowedApiUrl(req) {
   const url = new URL(req.url, 'http://localhost')
   const params = url.searchParams
@@ -175,6 +189,9 @@ export default defineConfig(({ mode }) => {
     root: path.resolve(__dirname, 'frontend'),
     publicDir: path.resolve(__dirname, 'frontend/public'),
     plugins: [comingSoonDev(comingSoon), apiGuard(), react(), tailwindcss()],
+    define: {
+      'import.meta.env.VITE_SITE_VERSION': JSON.stringify(siteVersion()),
+    },
     build: {
       outDir: path.resolve(__dirname, 'dist'),
       emptyOutDir: true,