diff --git a/src/App.tsx b/src/App.tsx
index a025e8f..1dd82b2 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -4,10 +4,14 @@ import { SearchBar } from './components/SearchBar';
 import { PackageList } from './components/PackageList';
 import { usePackages } from './hooks/usePackages';
 
+import {
+    Repository
+} from './types';
+
 export default function App() {
   const { packages, loading, error } = usePackages();
   const [search, setSearch] = useState('');
-  const [selectedRepository, setSelectedRepository] = useState<'core' | 'extra' | 'all'>('all');
+  const [selectedRepository, setSelectedRepository] = useState('all');
   const [debouncedSearch, setDebouncedSearch] = useState(search);
 
   // Debounce search to optimize performance
@@ -34,7 +38,7 @@ export default function App() {
     setSearch(value);
   };
 
-  const handleRepositoryFilterChange = (repo: 'core' | 'extra' | 'all') => {
+  const handleRepositoryFilterChange = (repo: Repository) => {
     setSelectedRepository(repo);
   };
 
diff --git a/src/components/Header.tsx b/src/components/Header.tsx
index 16cb30d..abde679 100644
--- a/src/components/Header.tsx
+++ b/src/components/Header.tsx
@@ -1,11 +1,15 @@
 import { ThemeToggle } from './ThemeToggle';
 import { Logo } from './Logo';
 
+import {
+    Repository
+} from '../types';
+
 interface HeaderProps {
-  onRepositoryChange: (repo: 'core' | 'extra' | 'all') => void;
+  onRepositoryChange: (repo: Repository) => void;
 }
 
-export function Header({ onRepositoryChange }: HeaderProps) {
+export function Header({ onRepositoryChange }: HeaderProps): JSX.Element {
   return (
     <header className="bg-gradient-to-r from-nord-9 to-nord-8 via-nord-10 text-nord-6 shadow-lg">
       <div className="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8 py-4">
@@ -17,14 +21,12 @@ export function Header({ onRepositoryChange }: HeaderProps) {
 
           {/* Repository Filter Dropdown */}
           <div>
-            <select
-              onChange={(e) => onRepositoryChange(e.target.value as 'core' | 'extra' | 'all')}
-              defaultValue="all"
-              className="bg-nord-5 dark:bg-nord-1 text-black dark:text-white border-2 border-nord-4 dark:border-nord-2 rounded-lg py-2 px-4 focus:ring-2 focus:ring-nord-8"
-            >
-              <option value="all">All Repositories</option>
-              <option value="core">Core</option>
-              <option value="extra">Extra</option>
+            <select onChange={
+                (e) => onRepositoryChange(e.target.value as Repository)
+            } defaultValue="all" className="bg-nord-5 dark:bg-nord-1 text-black dark:text-white border-2 border-nord-4 dark:border-nord-2 rounded-lg py-2 px-4 focus:ring-2 focus:ring-nord-8">
+                {Object.values(Repository).map((repository) => (
+                    <option key={repository} value={repository}>{((repository === Repository.All) ? 'All Repositories' : repository.charAt(0).toUpperCase() + repository.slice(1))}</option>
+                ))}
             </select>
           </div>
 
diff --git a/src/types.ts b/src/types.ts
index da3e616..43a9238 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -1,5 +1,11 @@
 // Type alias for repository categories
-export type Repository = 'core' | 'extra' | 'community' | 'multilib';
+export enum Repository {
+    All       = 'all',
+    Core      = 'core',
+    Extra     = 'extra',
+    Community = 'community',
+    Multilib  = 'multilib'
+}
 
 // Interface representing a single package
 export interface Package {