diff --git a/README.md b/README.md
index f1786549..46270afb 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# hapi
+# HAPI
 
 HAPI means "哈皮," a Chinese transliteration of [Happy](https://github.com/slopus/happy). Great credit to the original project.
 
diff --git a/web/index.html b/web/index.html
index 2ba0d426..4c1cabdd 100644
--- a/web/index.html
+++ b/web/index.html
@@ -15,7 +15,7 @@
         <!-- iOS PWA Meta Tags -->
         <meta name="apple-mobile-web-app-capable" content="yes" />
         <meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
-        <meta name="apple-mobile-web-app-title" content="Hapi" />
+        <meta name="apple-mobile-web-app-title" content="HAPI" />
         <link rel="apple-touch-icon" href="/apple-touch-icon-180x180.png" />
 
         <!-- Favicon -->
@@ -38,7 +38,7 @@
             }
         </script>
 
-        <title>Hapi</title>
+        <title>HAPI</title>
     </head>
     <body>
         <div id="root"></div>
diff --git a/web/src/App.tsx b/web/src/App.tsx
index 1904dfba..16002f0f 100644
--- a/web/src/App.tsx
+++ b/web/src/App.tsx
@@ -204,7 +204,7 @@ export function App() {
         // Telegram auth failed
         return (
             <div className="p-4 space-y-3">
-                <div className="text-base font-semibold">Hapi</div>
+                <div className="text-base font-semibold">HAPI</div>
                 <div className="text-sm text-red-600">
                     {authError ?? 'Not authorized'}
                 </div>
diff --git a/web/src/components/InstallPrompt.tsx b/web/src/components/InstallPrompt.tsx
index c3422bb4..416baf1f 100644
--- a/web/src/components/InstallPrompt.tsx
+++ b/web/src/components/InstallPrompt.tsx
@@ -20,7 +20,7 @@ export function InstallPrompt() {
                     <div className="w-full max-w-lg bg-[var(--app-bg)] rounded-t-2xl p-5 pb-8 space-y-4 animate-slide-up">
                         <div className="flex items-center justify-between">
                             <h3 className="text-base font-semibold text-[var(--app-fg)]">
-                                Install Hapi
+                                Install HAPI
                             </h3>
                             <button
                                 onClick={() => setShowIOSGuide(false)}
@@ -85,7 +85,7 @@ export function InstallPrompt() {
                 <div className="flex items-center justify-between gap-3">
                     <div className="flex-1 min-w-0">
                         <p className="text-sm font-medium text-[var(--app-fg)]">
-                            Install Hapi
+                            Install HAPI
                         </p>
                         <p className="text-xs text-[var(--app-hint)] mt-0.5">
                             Add to home screen for the best experience
@@ -133,7 +133,7 @@ export function InstallPrompt() {
             <div className="flex items-center justify-between gap-3">
                 <div className="flex-1 min-w-0">
                     <p className="text-sm font-medium text-[var(--app-fg)]">
-                        Install Hapi
+                        Install HAPI
                     </p>
                     <p className="text-xs text-[var(--app-hint)] mt-0.5">
                         Add to home screen for the best experience
diff --git a/web/src/components/LoginPrompt.tsx b/web/src/components/LoginPrompt.tsx
index 01f5c3f9..727aa945 100644
--- a/web/src/components/LoginPrompt.tsx
+++ b/web/src/components/LoginPrompt.tsx
@@ -140,7 +140,7 @@ export function LoginPrompt(props: LoginPromptProps) {
             <div className="w-full max-w-sm space-y-6">
                 {/* Header */}
                 <div className="text-center space-y-2">
-                    <div className="text-2xl font-semibold">Hapi</div>
+                    <div className="text-2xl font-semibold">HAPI</div>
                     <div className="text-sm text-[var(--app-hint)]">
                         Enter your access token to continue
                     </div>
diff --git a/web/vite.config.ts b/web/vite.config.ts
index ef57be7e..024245c3 100644
--- a/web/vite.config.ts
+++ b/web/vite.config.ts
@@ -26,8 +26,8 @@ export default defineConfig({
             registerType: 'autoUpdate',
             includeAssets: ['favicon.ico', 'apple-touch-icon-180x180.png', 'mask-icon.svg'],
             manifest: {
-                name: 'Hapi',
-                short_name: 'Hapi',
+                name: 'HAPI',
+                short_name: 'HAPI',
                 description: 'AI-powered development assistant',
                 theme_color: '#ffffff',
                 background_color: '#ffffff',
