diff --git a/public/index.php b/public/index.php
index 034e111..ae4387c 100644
--- a/public/index.php
+++ b/public/index.php
@@ -327,11 +327,11 @@ if (!$municipality) {
     <script src="https://cdn.jsdelivr.net/npm/sweetalert2@11.14.0/dist/sweetalert2.all.min.js"></script>
 
     <!-- ============================================================= -->
-    <!-- Municipality Configuration (passed to JavaScript)             -->
+    <!-- Municipality Configuration passed to JavaScript               -->
     <!-- ============================================================= -->
     <script>
         // Municipality Configuration from Database — used by app.js
-        var MUNICIPALITY = {
+        const MUNICIPALITY = {
             id: <?= $municipality['municipality_id'] ?>,
             name: "<?= htmlspecialchars($municipality['name'], ENT_QUOTES) ?>",
             slug: "<?= htmlspecialchars($municipality['slug'], ENT_QUOTES) ?>",
@@ -341,7 +341,7 @@ if (!$municipality) {
         };
 
         // Category Definitions from Database
-        var CATEGORIES = <?= json_encode(get_categories(), JSON_UNESCAPED_UNICODE) ?>;
+        const CATEGORIES = <?= json_encode(get_categories(), JSON_UNESCAPED_UNICODE) ?>;
     </script>
 
     <!-- Application Logic -->