diff --git a/ui/next.config.ts b/ui/next.config.ts
index de85a43c..2502cc7b 100644
--- a/ui/next.config.ts
+++ b/ui/next.config.ts
@@ -1,6 +1,15 @@
 import type { NextConfig } from 'next';
+import { readFileSync } from 'fs';
+import { join } from 'path';
+
+const versionFile = readFileSync(join(__dirname, '..', 'version.py'), 'utf8');
+const versionMatch = versionFile.match(/VERSION\s*=\s*["']([^"']+)["']/);
+const appVersion = versionMatch ? versionMatch[1] : 'unknown';
 
 const nextConfig: NextConfig = {
+  env: {
+    NEXT_PUBLIC_APP_VERSION: appVersion,
+  },
   serverExternalPackages: ['macstats', 'osx-temperature-sensor'],
   webpack: (config, { isServer }) => {
     if (isServer) {
diff --git a/ui/src/components/Sidebar.tsx b/ui/src/components/Sidebar.tsx
index 905f757d..7f9e1765 100644
--- a/ui/src/components/Sidebar.tsx
+++ b/ui/src/components/Sidebar.tsx
@@ -114,6 +114,9 @@ const Sidebar = () => {
           <ThemeToggle />
         </div>
       </div>
+      <div className="text-center text-[10px] text-gray-400 py-1 bg-gray-800">
+        Ostris AI-Toolkit v{process.env.NEXT_PUBLIC_APP_VERSION}
+      </div>
     </>
   );