diff --git a/README.md b/README.md
index 5a7b9ff..7cba1ff 100644
--- a/README.md
+++ b/README.md
@@ -30,7 +30,7 @@ Add your MailerLite API key in the Control Panel under the addon's settings (**T
 Every form's **Configure** page in the Control Panel gets a **MailerLite** section:
 
 - **Enable MailerLite sync** — toggle syncing for the form on or off.
-- **Group** — pick the MailerLite group subscribers are added to, loaded live from your account.
+- **Groups** — pick the MailerLite groups subscribers are added to, loaded live from your account.
 - **Field mapping** — map form fields to MailerLite subscriber fields. Map one field to `email`; submissions without an email value are skipped.
 
 The settings are saved on the form itself, so they are version controlled and deployed along with your other form YAML.
diff --git a/src/StatamicMailerLiteServiceProvider.php b/src/StatamicMailerLiteServiceProvider.php
index 66d475f..95c6ad6 100644
--- a/src/StatamicMailerLiteServiceProvider.php
+++ b/src/StatamicMailerLiteServiceProvider.php
@@ -49,10 +49,9 @@ public static function configFields(): array
             ],
             'mailerlite_group' => [
                 'type' => 'mailer_lite_groups',
-                'display' => __('Group'),
-                'instructions' => __('Subscribers will be added to this MailerLite group.'),
+                'display' => __('Groups'),
+                'instructions' => __('Subscribers will be added to these MailerLite groups.'),
                 'mode' => 'select',
-                'max_items' => 1,
                 'show_when' => [
                     'mailerlite_enabled' => true,
                 ],
diff --git a/tests/Feature/MailerLiteConfigFieldsTest.php b/tests/Feature/MailerLiteConfigFieldsTest.php
index 995cca8..3f0983c 100644
--- a/tests/Feature/MailerLiteConfigFieldsTest.php
+++ b/tests/Feature/MailerLiteConfigFieldsTest.php
@@ -9,7 +9,7 @@
     expect($fields['mailerlite_enabled']['type'])->toBe('toggle');
     expect($fields['mailerlite_enabled']['default'])->toBeFalse();
     expect($fields['mailerlite_group']['type'])->toBe('mailer_lite_groups');
-    expect($fields['mailerlite_group']['max_items'])->toBe(1);
+    expect($fields['mailerlite_group'])->not->toHaveKey('max_items');
     expect($fields['mailerlite_field_mapping']['type'])->toBe('grid');
 });
 
diff --git a/tests/Feature/SubmissionCreatedListenerTest.php b/tests/Feature/SubmissionCreatedListenerTest.php
index 4a383ea..e20900f 100644
--- a/tests/Feature/SubmissionCreatedListenerTest.php
+++ b/tests/Feature/SubmissionCreatedListenerTest.php
@@ -101,6 +101,23 @@ function jobProperty(CreateSubscriberJob $job, string $name): mixed
     );
 });
 
+it('passes multiple selected groups to the job', function () {
+    fakeApiKey('key-123');
+
+    $event = submissionEvent([
+        'mailerlite_enabled' => true,
+        'mailerlite_group' => ['42', '99'],
+        'mailerlite_field_mapping' => [['form_field' => 'email', 'mailerlite_field' => 'email']],
+    ], ['email' => 'a@b.com']);
+
+    (new SubmissionCreatedListener)->handle($event);
+
+    Queue::assertPushed(
+        CreateSubscriberJob::class,
+        fn (CreateSubscriberJob $job) => jobProperty($job, 'subscriberGroups') === ['42', '99'],
+    );
+});
+
 it('dispatches without a group when none is selected', function () {
     fakeApiKey('key-123');