diff --git a/modules/system/assets/js/lang/lang.ar.js b/modules/system/assets/js/lang/lang.ar.js
index bc6151182..cc1f2223e 100644
--- a/modules/system/assets/js/lang/lang.ar.js
+++ b/modules/system/assets/js/lang/lang.ar.js
@@ -9,6 +9,7 @@ $.oc.langMessages['ar'] = $.extend(
 );
 
 //! moment.js locale configuration v2.22.2
+//!!! IMPORTANT - modified from default - see https://github.com/octobercms/october/issues/5213
 
 ;(function (global, factory) {
    typeof exports === 'object' && typeof module !== 'undefined'
@@ -19,27 +20,16 @@ $.oc.langMessages['ar'] = $.extend(
 
 
     var symbolMap = {
-        '1': '١',
-        '2': '٢',
-        '3': '٣',
-        '4': '٤',
-        '5': '٥',
-        '6': '٦',
-        '7': '٧',
-        '8': '٨',
-        '9': '٩',
-        '0': '٠'
-    }, numberMap = {
-        '١': '1',
-        '٢': '2',
-        '٣': '3',
-        '٤': '4',
-        '٥': '5',
-        '٦': '6',
-        '٧': '7',
-        '٨': '8',
-        '٩': '9',
-        '٠': '0'
+        '1': '1',
+        '2': '2',
+        '3': '3',
+        '4': '4',
+        '5': '5',
+        '6': '6',
+        '7': '7',
+        '8': '8',
+        '9': '9',
+        '0': '0'
     }, pluralForm = function (n) {
         return n === 0 ? 0 : n === 1 ? 1 : n === 2 ? 2 : n % 100 >= 3 && n % 100 <= 10 ? 3 : n % 100 >= 11 ? 4 : 5;
     }, plurals = {
@@ -124,9 +114,7 @@ $.oc.langMessages['ar'] = $.extend(
             yy : pluralize('y')
         },
         preparse: function (string) {
-            return string.replace(/[١٢٣٤٥٦٧٨٩٠]/g, function (match) {
-                return numberMap[match];
-            }).replace(/،/g, ',');
+            return string.replace(/،/g, ',');
         },
         postformat: function (string) {
             return string.replace(/\d/g, function (match) {
diff --git a/modules/system/assets/ui/vendor/moment/locale/ar.js b/modules/system/assets/ui/vendor/moment/locale/ar.js
index e0d3c98f1..fed1c9cdc 100644
--- a/modules/system/assets/ui/vendor/moment/locale/ar.js
+++ b/modules/system/assets/ui/vendor/moment/locale/ar.js
@@ -1,4 +1,5 @@
 //! moment.js locale configuration v2.22.2
+//!!! IMPORTANT - modified from default - see https://github.com/octobercms/october/issues/5213
 
 ;(function (global, factory) {
    typeof exports === 'object' && typeof module !== 'undefined'
@@ -9,27 +10,16 @@
 
 
     var symbolMap = {
-        '1': '١',
-        '2': '٢',
-        '3': '٣',
-        '4': '٤',
-        '5': '٥',
-        '6': '٦',
-        '7': '٧',
-        '8': '٨',
-        '9': '٩',
-        '0': '٠'
-    }, numberMap = {
-        '١': '1',
-        '٢': '2',
-        '٣': '3',
-        '٤': '4',
-        '٥': '5',
-        '٦': '6',
-        '٧': '7',
-        '٨': '8',
-        '٩': '9',
-        '٠': '0'
+        '1': '1',
+        '2': '2',
+        '3': '3',
+        '4': '4',
+        '5': '5',
+        '6': '6',
+        '7': '7',
+        '8': '8',
+        '9': '9',
+        '0': '0'
     }, pluralForm = function (n) {
         return n === 0 ? 0 : n === 1 ? 1 : n === 2 ? 2 : n % 100 >= 3 && n % 100 <= 10 ? 3 : n % 100 >= 11 ? 4 : 5;
     }, plurals = {
@@ -114,9 +104,7 @@
             yy : pluralize('y')
         },
         preparse: function (string) {
-            return string.replace(/[١٢٣٤٥٦٧٨٩٠]/g, function (match) {
-                return numberMap[match];
-            }).replace(/،/g, ',');
+            return string.replace(/،/g, ',');
         },
         postformat: function (string) {
             return string.replace(/\d/g, function (match) {