diff --git a/lib/features/settings/subfeatures/chain_configuration/subfeatures/add_custom_network/add_custom_network_page.dart b/lib/features/settings/subfeatures/chain_configuration/subfeatures/add_custom_network/add_custom_network_page.dart
index aa7799b2..7f158251 100644
--- a/lib/features/settings/subfeatures/chain_configuration/subfeatures/add_custom_network/add_custom_network_page.dart
+++ b/lib/features/settings/subfeatures/chain_configuration/subfeatures/add_custom_network/add_custom_network_page.dart
@@ -105,8 +105,7 @@ class AddCustomNetworkPage extends HookConsumerWidget {
               MxcTextField(
                 key: const ValueKey('symbolTextField'),
                 label: translate('symbol'),
-                hint:
-                    '${translate('currency')} ${translate('symbol')}',
+                hint: '${translate('currency')} ${translate('symbol')}',
                 controller: presenter.symbolController,
                 action: TextInputAction.next,
                 validator: (value) {
@@ -125,10 +124,22 @@ class AddCustomNetworkPage extends HookConsumerWidget {
               MxcTextField(
                 key: const ValueKey('explorerTextField'),
                 label: translate('block_explorer_url'),
-                hint:
-                    '${translate('block_explorer_url')} (${translate('optional')})',
+                hint: translate('block_explorer_url'),
                 controller: presenter.explorerController,
                 action: TextInputAction.done,
+                validator: (value) {
+                  final res = Validation.notEmpty(
+                      context,
+                      value,
+                      translate('x_not_empty').replaceFirst(
+                          '{0}', translate('block_explorer_url')));
+                  if (res != null) return res;
+                  return Validation.checkHttps(context, value);
+                },
+                onChanged: (value) {
+                  presenter.changeAbleToSave(
+                      formKey.currentState!.validate() ? true : false);
+                },
               ),
             ],
           ),
diff --git a/packages/shared b/packages/shared
index 78bb0928..79da7ed1 160000
--- a/packages/shared
+++ b/packages/shared
@@ -1 +1 @@
-Subproject commit 78bb09288299de8f9f9bcda5d863bc641304d328
+Subproject commit 79da7ed13f0077c981cf8c4faeced34c7e140e29