diff --git a/packages/Webkul/Admin/src/Resources/assets/js/plugins/vee-validate.js b/packages/Webkul/Admin/src/Resources/assets/js/plugins/vee-validate.js
index 95edb1788..018bf0529 100644
--- a/packages/Webkul/Admin/src/Resources/assets/js/plugins/vee-validate.js
+++ b/packages/Webkul/Admin/src/Resources/assets/js/plugins/vee-validate.js
@@ -79,6 +79,18 @@ export default {
             return true;
         });
 
+        defineRule("postcode", (value) => {
+            if (! value || ! value.length) {
+                return true;
+            }
+
+            if (! /^[a-zA-Z0-9][a-zA-Z0-9\s-]*[a-zA-Z0-9]$/.test(value)) {
+                return false;
+            }
+
+            return true;
+        });
+
         defineRule("decimal", (value, { decimals = '*', separator = '.' } = {}) => {
             if (value === null || value === undefined || value === '') {
                 return true;
diff --git a/packages/Webkul/Admin/src/Resources/views/components/attributes/edit/address.blade.php b/packages/Webkul/Admin/src/Resources/views/components/attributes/edit/address.blade.php
index ef1bcfe2d..658ad21b9 100644
--- a/packages/Webkul/Admin/src/Resources/views/components/attributes/edit/address.blade.php
+++ b/packages/Webkul/Admin/src/Resources/views/components/attributes/edit/address.blade.php
@@ -123,7 +123,7 @@
                         ::value="data &&  data['postcode'] ? data['postcode'] : ''"
                         :placeholder="trans('admin::app.common.custom-attributes.postcode')"
                         :label="trans('admin::app.common.custom-attributes.postcode')"
-                        ::rules="attribute.is_required ? 'required|min:5|max:10' : 'min:5|max:10'"
+                        ::rules="attribute.is_required ? 'required|postcode' : 'postcode'"
                     />
 
                     <x-admin::form.control-group.error ::name="attribute['code'] + '[postcode]'" />
diff --git a/packages/Webkul/Admin/src/Resources/views/contacts/organizations/create.blade.php b/packages/Webkul/Admin/src/Resources/views/contacts/organizations/create.blade.php
index 046483335..63722fc33 100644
--- a/packages/Webkul/Admin/src/Resources/views/contacts/organizations/create.blade.php
+++ b/packages/Webkul/Admin/src/Resources/views/contacts/organizations/create.blade.php
@@ -61,7 +61,7 @@ class="primary-button"
                             'max:100',
                         ],
                         'postcode' => [
-                            'max:20',
+                            'postcode',
                         ],
                     ]"
                 />
diff --git a/packages/Webkul/Admin/src/Resources/views/contacts/organizations/edit.blade.php b/packages/Webkul/Admin/src/Resources/views/contacts/organizations/edit.blade.php
index 04877ba61..3ff41af43 100644
--- a/packages/Webkul/Admin/src/Resources/views/contacts/organizations/edit.blade.php
+++ b/packages/Webkul/Admin/src/Resources/views/contacts/organizations/edit.blade.php
@@ -62,7 +62,7 @@ class="primary-button"
                             'max:100',
                         ],
                         'postcode' => [
-                            'max:20',
+                            'postcode',
                         ],
                     ]"
                     :entity="$organization"
diff --git a/packages/Webkul/Admin/src/Resources/views/settings/warehouses/create.blade.php b/packages/Webkul/Admin/src/Resources/views/settings/warehouses/create.blade.php
index e02d44a21..f028f2c01 100644
--- a/packages/Webkul/Admin/src/Resources/views/settings/warehouses/create.blade.php
+++ b/packages/Webkul/Admin/src/Resources/views/settings/warehouses/create.blade.php
@@ -65,7 +65,7 @@ class="primary-button"
                                     'max:100',
                                 ],
                                 'postcode' => [
-                                    'max:20',
+                                    'postcode',
                                 ],
                             ]"
                         />
diff --git a/packages/Webkul/Admin/src/Resources/views/settings/warehouses/edit.blade.php b/packages/Webkul/Admin/src/Resources/views/settings/warehouses/edit.blade.php
index bc9edc7a7..8534e1f26 100644
--- a/packages/Webkul/Admin/src/Resources/views/settings/warehouses/edit.blade.php
+++ b/packages/Webkul/Admin/src/Resources/views/settings/warehouses/edit.blade.php
@@ -68,7 +68,7 @@ class="primary-button"
                                     'max:100',
                                 ],
                                 'postcode' => [
-                                    'max:20',
+                                    'postcode',
                                 ],
                             ]"
                             :entity="$warehouse"