diff --git a/Gemfile b/Gemfile
index 7b809cb7..1e700444 100644
--- a/Gemfile
+++ b/Gemfile
@@ -7,9 +7,6 @@ gemspec
 
 gem 'rails', '~> 7.0.1'
 
-# Lock i18n to 1.14.x for: https://github.com/ruby-i18n/i18n/issues/735
-gem 'i18n', '~> 1.14.0'
-
 # Lock minitest to 5.x until Rails 7.1+ adds Minitest 6.0 support
 # Minitest 6.0.0 was released Dec 2024 with breaking API changes
 gem 'minitest', '~> 5.0'
diff --git a/app/views/kaui/components/menu_dropdown/_menu_dropdown.html.erb b/app/views/kaui/components/menu_dropdown/_menu_dropdown.html.erb
index 6d70c6a7..bef32b4e 100644
--- a/app/views/kaui/components/menu_dropdown/_menu_dropdown.html.erb
+++ b/app/views/kaui/components/menu_dropdown/_menu_dropdown.html.erb
@@ -17,6 +17,7 @@
 
   <ul class="dropdown-menu header-menu shadow border-0 rounded-3"
       id="<%= dropdown_id %>_menu"
+      aria-labelledby="<%= dropdown_id %>_button"
       style="min-width: 6.25rem; display: none;">
     <% menu_items&.each do |item| %>
       <li>
@@ -31,28 +32,21 @@
 
 <%= javascript_tag do %>
   document.addEventListener('DOMContentLoaded', function () {
-    const button = document.getElementById('<%= dropdown_id %>_button');
-    const menu = document.getElementById('<%= dropdown_id %>_menu');
-    const wrapper = document.getElementById('<%= dropdown_id %>_wrapper');
+    var button = document.getElementById('<%= dropdown_id %>_button');
+    var menu = document.getElementById('<%= dropdown_id %>_menu');
+    var wrapper = document.getElementById('<%= dropdown_id %>_wrapper');
 
     button.addEventListener('click', function (e) {
       e.stopPropagation();
-      const isShown = menu.style.display === 'block';
-
-      // Close all other open dropdowns first (including other dots menus)
-      document.querySelectorAll('.dropdown-menu').forEach(function (m) {
-        if (m !== menu) {
-          m.style.display = 'none';
-        }
-      });
-
-      // Toggle this one
+      var isShown = menu.style.display === 'block';
       menu.style.display = isShown ? 'none' : 'block';
+      button.setAttribute('aria-expanded', !isShown);
     });
 
     document.addEventListener('click', function (e) {
-      if (!wrapper.contains(e.target)) {
+      if (!wrapper.contains(e.target) && menu.style.display === 'block') {
         menu.style.display = 'none';
+        button.setAttribute('aria-expanded', 'false');
       }
     });
   });
diff --git a/app/views/kaui/invoices/_multi_functions_bar.html.erb b/app/views/kaui/invoices/_multi_functions_bar.html.erb
index 7d32a96c..b4e68ce3 100644
--- a/app/views/kaui/invoices/_multi_functions_bar.html.erb
+++ b/app/views/kaui/invoices/_multi_functions_bar.html.erb
@@ -45,10 +45,7 @@
       type: "button",
       html_class: "kaui-button custom-hover",
       html_options: {
-        id: "dropdownMenu1",
-        data: {
-          bs_toggle: "dropdown"
-        }
+        id: "dropdownMenu1"
       }
     } %>
     <ul class="dropdown-menu" id="column-visibility" aria-labelledby="dropdownMenu1">
@@ -213,13 +210,15 @@
 
 <%= javascript_tag do %>
 $(document).ready(function() {
-  // Initialize Bootstrap dropdown
-  var dropdownElementList = [].slice.call(document.querySelectorAll('.dropdown-toggle'));
-  var dropdownList = dropdownElementList.map(function (dropdownToggleEl) {
-    return new bootstrap.Dropdown(dropdownToggleEl);
+  // Toggle Edit Columns dropdown
+  $('#dropdownMenu1').on('click', function(e) {
+    e.stopPropagation();
+    var $menu = $('#column-visibility');
+    $menu.toggleClass('show');
+    $(this).attr('aria-expanded', $menu.hasClass('show'));
   });
 
-  $('.dropdown-menu').on('click', 'input[type="checkbox"], label', function(event) {
+  $('#column-visibility').on('click', 'input[type="checkbox"], label', function(event) {
     event.stopPropagation();
   });
 
diff --git a/app/views/kaui/payments/_multi_functions_bar.html.erb b/app/views/kaui/payments/_multi_functions_bar.html.erb
index 7f0b409d..ea7b04b5 100644
--- a/app/views/kaui/payments/_multi_functions_bar.html.erb
+++ b/app/views/kaui/payments/_multi_functions_bar.html.erb
@@ -45,10 +45,7 @@
       type: "button",
       html_class: "kaui-button custom-hover",
       html_options: {
-        id: "dropdownMenu1",
-        data: {
-          bs_toggle: "dropdown"
-        }
+        id: "dropdownMenu1"
       }
     } %>
     <ul class="dropdown-menu" id="column-visibility" aria-labelledby="dropdownMenu1">
@@ -213,13 +210,15 @@
 
 <%= javascript_tag do %>
 $(document).ready(function() {
-  // Initialize Bootstrap dropdown
-  var dropdownElementList = [].slice.call(document.querySelectorAll('.dropdown-toggle'));
-  var dropdownList = dropdownElementList.map(function (dropdownToggleEl) {
-    return new bootstrap.Dropdown(dropdownToggleEl);
+  // Toggle Edit Columns dropdown
+  $('#dropdownMenu1').on('click', function(e) {
+    e.stopPropagation();
+    var $menu = $('#column-visibility');
+    $menu.toggleClass('show');
+    $(this).attr('aria-expanded', $menu.hasClass('show'));
   });
 
-  $('.dropdown-menu').on('click', 'input[type="checkbox"], label', function(event) {
+  $('#column-visibility').on('click', 'input[type="checkbox"], label', function(event) {
     event.stopPropagation();
   });