diff --git a/src/pages/settings.jsx b/src/pages/settings.jsx
index 3205b842..0875c474 100644
--- a/src/pages/settings.jsx
+++ b/src/pages/settings.jsx
@@ -186,6 +186,24 @@ export default ({ onClose }) => {
         </a>
         .
       </p>
+      {__BUILD_TIME__ && (
+        <p>
+          Last build:{' '}
+          <relative-time datetime={new Date(__BUILD_TIME__).toISOString()} />{' '}
+          {__COMMIT_HASH__ && (
+            <>
+              (
+              <a
+                href={`https://github.com/cheeaun/phanpy/commit/${__COMMIT_HASH__}`}
+                target="_blank"
+              >
+                <code>{__COMMIT_HASH__}</code>
+              </a>
+              )
+            </>
+          )}
+        </p>
+      )}
     </div>
   );
 };
diff --git a/vite.config.js b/vite.config.js
index f4b5207e..ac587b1c 100644
--- a/vite.config.js
+++ b/vite.config.js
@@ -1,9 +1,16 @@
 import preact from '@preact/preset-vite';
+import { execSync } from 'child_process';
 import { resolve } from 'path';
 import { defineConfig, splitVendorChunkPlugin } from 'vite';
 
+const commitHash = execSync('git rev-parse --short HEAD').toString().trim();
+
 // https://vitejs.dev/config/
 export default defineConfig({
+  define: {
+    __BUILD_TIME__: JSON.stringify(Date.now()),
+    __COMMIT_HASH__: JSON.stringify(commitHash),
+  },
   plugins: [preact(), splitVendorChunkPlugin()],
   build: {
     sourcemap: true,