diff --git a/scripts/pi-hole/js/groups-adlists.js b/scripts/pi-hole/js/groups-adlists.js
index 80a7f9a2..ec828d97 100644
--- a/scripts/pi-hole/js/groups-adlists.js
+++ b/scripts/pi-hole/js/groups-adlists.js
@@ -1,10 +1,10 @@
 var table;
 var groups = [];
-const token = $("#token").html();
+var token = $("#token").html();
 var info = null;
 
 function showAlert(type, icon, title, message) {
-  let opts = {};
+  var opts = {};
   title = "&nbsp;<strong>" + title + "</strong><br>";
   switch (type) {
     case "info":
@@ -110,7 +110,7 @@ function initTable() {
       $(".deleteAdlist").on("click", deleteAdlist);
     },
     rowCallback: function(row, data) {
-      const tooltip =
+      var tooltip =
         "Added: " +
         datetime(data.date_added) +
         "\nLast modified: " +
@@ -121,7 +121,7 @@ function initTable() {
         '<code id="address" title="' + tooltip + '">' + data.address + "</code>"
       );
 
-      const disabled = data.enabled === 0;
+      var disabled = data.enabled === 0;
       $("td:eq(1)", row).html(
         '<input type="checkbox" id="status"' +
           (disabled ? "" : " checked") +
@@ -169,7 +169,7 @@ function initTable() {
       sel.multiselect({ includeSelectAllOption: true });
       sel.on("change", editAdlist);
 
-      let button =
+      var button =
         '<button class="btn btn-danger btn-xs deleteAdlist" type="button" data-id="' +
         data.id +
         '">' +
diff --git a/scripts/pi-hole/js/groups-clients.js b/scripts/pi-hole/js/groups-clients.js
index 9b6ca920..658a0722 100644
--- a/scripts/pi-hole/js/groups-clients.js
+++ b/scripts/pi-hole/js/groups-clients.js
@@ -1,10 +1,10 @@
 var table;
 var groups = [];
-const token = $("#token").html();
+var token = $("#token").html();
 var info = null;
 
 function showAlert(type, icon, title, message) {
-  let opts = {};
+  var opts = {};
   title = "&nbsp;<strong>" + title + "</strong><br>";
   switch (type) {
     case "info":
@@ -136,7 +136,7 @@ function initTable() {
       $(".deleteClient").on("click", deleteClient);
     },
     rowCallback: function(row, data) {
-      const tooltip = "Database ID: " + data.id;
+      var tooltip = "Database ID: " + data.id;
       var ip_name =
         '<code id="ip" title="' +
         tooltip +
@@ -177,7 +177,7 @@ function initTable() {
       sel.multiselect({ includeSelectAllOption: true });
       sel.on("change", editClient);
 
-      let button =
+      var button =
         '<button class="btn btn-danger btn-xs deleteClient" type="button" data-id="' +
         data.id +
         '">' +
diff --git a/scripts/pi-hole/js/groups-domains.js b/scripts/pi-hole/js/groups-domains.js
index 8637a7d7..227722de 100644
--- a/scripts/pi-hole/js/groups-domains.js
+++ b/scripts/pi-hole/js/groups-domains.js
@@ -1,10 +1,10 @@
 var table;
 var groups = [];
-const token = $("#token").html();
+var token = $("#token").html();
 var info = null;
 
 function showAlert(type, icon, title, message) {
-  let opts = {};
+  var opts = {};
   title = "&nbsp;<strong>" + title + "</strong><br>";
   switch (type) {
     case "info":
@@ -111,7 +111,7 @@ function initTable() {
       $(".deleteDomain").on("click", deleteDomain);
     },
     rowCallback: function(row, data) {
-      const tooltip =
+      var tooltip =
         "Added: " +
         datetime(data.date_added) +
         "\nLast modified: " +
@@ -140,7 +140,7 @@ function initTable() {
       );
       $("#type", row).on("change", editDomain);
 
-      const disabled = data.enabled === 0;
+      var disabled = data.enabled === 0;
       $("td:eq(2)", row).html(
         '<input type="checkbox" id="status"' +
           (disabled ? "" : " checked") +
@@ -186,7 +186,7 @@ function initTable() {
       sel.multiselect({ includeSelectAllOption: true });
       sel.on("change", editDomain);
 
-      let button =
+      var button =
         '<button class="btn btn-danger btn-xs deleteDomain" type="button" data-id="' +
         data.id +
         '">' +
diff --git a/scripts/pi-hole/js/groups.js b/scripts/pi-hole/js/groups.js
index a39ef02b..6af45d1a 100644
--- a/scripts/pi-hole/js/groups.js
+++ b/scripts/pi-hole/js/groups.js
@@ -1,9 +1,9 @@
 var table;
-const token = $("#token").html();
+var token = $("#token").html();
 var info = null;
 
 function showAlert(type, icon, title, message) {
-  let opts = {};
+  var opts = {};
   title = "&nbsp;<strong>" + title + "</strong><br>";
   switch (type) {
     case "info":
@@ -84,7 +84,7 @@ $(document).ready(function() {
       $(".deleteGroup").on("click", deleteGroup);
     },
     rowCallback: function(row, data) {
-      const tooltip =
+      var tooltip =
         "Added: " +
         datetime(data.date_added) +
         "\nLast modified: " +
@@ -102,7 +102,7 @@ $(document).ready(function() {
       name.val(data.name);
       name.on("change", editGroup);
 
-      const disabled = data.enabled === 0;
+      var disabled = data.enabled === 0;
       $("td:eq(1)", row).html(
         '<input type="checkbox" id="status"' +
           (disabled ? "" : " checked") +
@@ -119,13 +119,13 @@ $(document).ready(function() {
       status.on("change", editGroup);
 
       $("td:eq(2)", row).html('<input id="desc" class="form-control">');
-      const desc = data.description !== null ? data.description : "";
+      var desc = data.description !== null ? data.description : "";
       $("#desc", row).val(desc);
       $("#desc", row).on("change", editGroup);
 
       $("td:eq(3)", row).empty();
       if (data.id !== 0) {
-        let button =
+        var button =
           " &nbsp;" +
           '<button class="btn btn-danger btn-xs deleteGroup" type="button" data-id="' +
           data.id +