diff --git a/modules/oe_webtools_maps/config/install/oe_webtools_maps.settings.yml b/modules/oe_webtools_maps/config/install/oe_webtools_maps.settings.yml
new file mode 100644
index 00000000..c145e4dc
--- /dev/null
+++ b/modules/oe_webtools_maps/config/install/oe_webtools_maps.settings.yml
@@ -0,0 +1 @@
+map_version: '3.0'
diff --git a/modules/oe_webtools_maps/config/schema/oe_webtools_maps.schema.yml b/modules/oe_webtools_maps/config/schema/oe_webtools_maps.schema.yml
index f7f43ded..d6204352 100644
--- a/modules/oe_webtools_maps/config/schema/oe_webtools_maps.schema.yml
+++ b/modules/oe_webtools_maps/config/schema/oe_webtools_maps.schema.yml
@@ -1,3 +1,11 @@
+oe_webtools_maps.settings:
+  type: config_object
+  label: 'Webtools Maps Settings'
+  mapping:
+    map_version:
+      type: string
+      label: 'Map version'
+
 field.formatter.settings.oe_webtools_maps_map:
   type: mapping
   label: Webtools Map formatter settings
diff --git a/modules/oe_webtools_maps/oe_webtools_maps.permissions.yml b/modules/oe_webtools_maps/oe_webtools_maps.permissions.yml
new file mode 100644
index 00000000..a50c62f8
--- /dev/null
+++ b/modules/oe_webtools_maps/oe_webtools_maps.permissions.yml
@@ -0,0 +1,2 @@
+administer webtools maps:
+  title: 'Administer Webtools Maps'
diff --git a/modules/oe_webtools_maps/oe_webtools_maps.routing.yml b/modules/oe_webtools_maps/oe_webtools_maps.routing.yml
new file mode 100644
index 00000000..f21752df
--- /dev/null
+++ b/modules/oe_webtools_maps/oe_webtools_maps.routing.yml
@@ -0,0 +1,7 @@
+oe_webtools_maps.settings:
+  path: '/admin/config/system/oe_webtools_maps'
+  defaults:
+    _form: 'Drupal\oe_webtools_maps\Form\WebtoolsMapsSettingsForm'
+    _title: 'Webtools Maps settings'
+  requirements:
+    _permission: 'administer webtools maps'
diff --git a/modules/oe_webtools_maps/src/Form/WebtoolsMapsSettingsForm.php b/modules/oe_webtools_maps/src/Form/WebtoolsMapsSettingsForm.php
new file mode 100644
index 00000000..522933a6
--- /dev/null
+++ b/modules/oe_webtools_maps/src/Form/WebtoolsMapsSettingsForm.php
@@ -0,0 +1,59 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Drupal\oe_webtools_maps\Form;
+
+use Drupal\Core\Form\ConfigFormBase;
+use Drupal\Core\Form\FormStateInterface;
+
+/**
+ * Provides configuration form for the Maps webtools widget.
+ */
+class WebtoolsMapsSettingsForm extends ConfigFormBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getFormId(): string {
+    return 'oe_webtools_maps_settings';
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildForm(array $form, FormStateInterface $form_state): array {
+    $config = $this->config('oe_webtools_maps.settings');
+
+    $form['map_version'] = [
+      '#type' => 'select',
+      '#title' => $this->t('Map Version'),
+      '#options' => [
+        '2.0' => $this->t('Version 2.0'),
+        '3.0' => $this->t('Version 3.0'),
+      ],
+      '#default_value' => $config->get('map_version') ?? '2.0',
+    ];
+
+    return parent::buildForm($form, $form_state);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function submitForm(array &$form, FormStateInterface $form_state): void {
+    $this->config('oe_webtools_maps.settings')
+      ->set('map_version', $form_state->getValue('map_version'))
+      ->save();
+
+    parent::submitForm($form, $form_state);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function getEditableConfigNames(): array {
+    return ['oe_webtools_maps.settings'];
+  }
+
+}
diff --git a/modules/oe_webtools_maps/src/Plugin/Field/FieldFormatter/WebtoolsMapFormatter.php b/modules/oe_webtools_maps/src/Plugin/Field/FieldFormatter/WebtoolsMapFormatter.php
index c10ffd7a..4cf1ef1e 100644
--- a/modules/oe_webtools_maps/src/Plugin/Field/FieldFormatter/WebtoolsMapFormatter.php
+++ b/modules/oe_webtools_maps/src/Plugin/Field/FieldFormatter/WebtoolsMapFormatter.php
@@ -4,10 +4,14 @@
 
 namespace Drupal\oe_webtools_maps\Plugin\Field\FieldFormatter;
 
+use Drupal\Core\Cache\CacheableMetadata;
+use Drupal\Core\Config\ConfigFactoryInterface;
+use Drupal\Core\Field\FieldDefinitionInterface;
 use Drupal\Core\Field\FieldItemListInterface;
 use Drupal\Core\Field\FormatterBase;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\oe_webtools_maps\Component\Render\JsonEncoded;
+use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
  * Displays a Geofield as a map using the Webtools Maps service.
@@ -22,6 +26,60 @@
  */
 class WebtoolsMapFormatter extends FormatterBase {
 
+  /**
+   * The configuration factory.
+   *
+   * @var \Drupal\Core\Config\ConfigFactoryInterface
+   */
+  protected $configFactory;
+
+  /**
+   * Constructs a WebtoolsMapFormatter object.
+   *
+   * @param string $plugin_id
+   *   The plugin_id for the formatter.
+   * @param mixed $plugin_definition
+   *   The plugin implementation definition.
+   * @param \Drupal\Core\Field\FieldDefinitionInterface $field_definition
+   *   The definition of the field to which the formatter is associated.
+   * @param array $settings
+   *   The formatter settings.
+   * @param string $label
+   *   The formatter label display setting.
+   * @param string $view_mode
+   *   The view mode.
+   * @param array $third_party_settings
+   *   Any third party settings.
+   * @param \Drupal\Core\Config\ConfigFactoryInterface $configFactory
+   *   The config factory.
+   */
+  public function __construct($plugin_id, $plugin_definition, FieldDefinitionInterface $field_definition, array $settings, $label, $view_mode, array $third_party_settings, ConfigFactoryInterface $configFactory) {
+    parent::__construct($plugin_id, $plugin_definition, $field_definition, $settings, $label, $view_mode, $third_party_settings);
+
+    $this->fieldDefinition = $field_definition;
+    $this->settings = $settings;
+    $this->label = $label;
+    $this->viewMode = $view_mode;
+    $this->thirdPartySettings = $third_party_settings;
+    $this->configFactory = $configFactory;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
+    return new static(
+      $plugin_id,
+      $plugin_definition,
+      $configuration['field_definition'],
+      $configuration['settings'],
+      $configuration['label'],
+      $configuration['view_mode'],
+      $configuration['third_party_settings'],
+      $container->get('config.factory')
+    );
+  }
+
   /**
    * {@inheritdoc}
    */
@@ -71,11 +129,13 @@ public function settingsSummary() {
    */
   public function viewElements(FieldItemListInterface $items, $langcode) {
     $element = [];
+    $config = $this->configFactory->get('oe_webtools_maps.settings');
 
     foreach ($items as $delta => $item) {
       $data_array = [
         'service' => 'map',
-        'version' => '2.0',
+        // Fallback to version 2.0 for BC.
+        'version' => $config->get('map_version') ?? '2.0',
         'map' => [
           'zoom' => $this->getSetting('zoom_level'),
           'center' => [
@@ -129,6 +189,10 @@ public function viewElements(FieldItemListInterface $items, $langcode) {
       $element['#attached'] = [
         'library' => ['oe_webtools/drupal.webtools-smartloader'],
       ];
+
+      $cache_metadata = new CacheableMetadata();
+      $cache_metadata->addCacheableDependency($config);
+      $cache_metadata->applyTo($element);
     }
 
     return $element;
diff --git a/modules/oe_webtools_maps/tests/src/Functional/ConfigurationTest.php b/modules/oe_webtools_maps/tests/src/Functional/ConfigurationTest.php
new file mode 100644
index 00000000..3d8389ae
--- /dev/null
+++ b/modules/oe_webtools_maps/tests/src/Functional/ConfigurationTest.php
@@ -0,0 +1,128 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Drupal\Tests\oe_webtools_maps\Functional;
+
+use Drupal\Core\Entity\Entity\EntityFormDisplay;
+use Drupal\Tests\BrowserTestBase;
+use Drupal\Tests\oe_webtools\Traits\ApplicationJsonAssertTrait;
+use Drupal\field\Entity\FieldConfig;
+use Drupal\field\Entity\FieldStorageConfig;
+use Drupal\node\Entity\Node;
+
+/**
+ * Tests that the configured settings are correctly reflected in the page.
+ */
+class ConfigurationTest extends BrowserTestBase {
+
+  use ApplicationJsonAssertTrait;
+
+  /**
+   * {@inheritdoc}
+   */
+  protected static $modules = [
+    'geofield',
+    'node',
+    'oe_webtools_maps',
+  ];
+
+  /**
+   * {@inheritdoc}
+   */
+  protected $defaultTheme = 'stark';
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp(): void {
+    parent::setUp();
+
+    $this->drupalCreateContentType([
+      'type' => 'test',
+    ]);
+    $field_storage = FieldStorageConfig::create([
+      'field_name' => 'geofield_field',
+      'entity_type' => 'node',
+      'type' => 'geofield',
+      'settings' => [
+        'backend' => 'geofield_backend_default',
+      ],
+    ]);
+    $field_storage->save();
+
+    FieldConfig::create([
+      'field_storage' => $field_storage,
+      'bundle' => 'test',
+      'settings' => [
+        'backend' => 'geofield_backend_default',
+      ],
+    ])->save();
+
+    /** @var \Drupal\Core\Entity\Display\EntityViewDisplayInterface $display */
+    $display = \Drupal::entityTypeManager()
+      ->getStorage('entity_view_display')
+      ->load('node.test.default');
+
+    $display->setComponent('geofield_field', [
+      'label' => 'above',
+      'type' => 'oe_webtools_maps_map',
+    ]);
+    $display->save();
+
+    EntityFormDisplay::load('node.test.default')
+      ->setComponent($field_storage->getName(), [
+        'type' => 'geofield_latlon',
+      ])
+      ->save();
+
+    $this->drupalLogin($this->drupalCreateUser([], NULL, TRUE));
+  }
+
+  /**
+   * Tests if changing configuration changes the map JSON.
+   */
+  public function testConfigurationChanges(): void {
+    $node = Node::create([
+      'type' => 'test',
+      'user_id' => 1,
+      'title' => 'My map',
+      'geofield_field' => [
+        [
+          'value' => 'POINT (-2.1021 42.2257)',
+        ],
+      ],
+    ]);
+    $node->save();
+
+    $this->drupalGet('/node/1');
+
+    // New installations receive map version 3.0 by default.
+    $this->assertBodyContainsApplicationJson('{"service":"map","version":"3.0","map":{"zoom":4,"center":[42.2257,-2.1021]}}');
+
+    // Change the config, assert the map changed.
+    $this->drupalGet('admin/config/system/oe_webtools_maps');
+    $page = $this->getSession()->getPage();
+    $page->selectFieldOption('Map Version', '2.0');
+    $page->pressButton('Save configuration');
+
+    $this->drupalGet('/node/1');
+    $this->assertBodyContainsApplicationJson('{"service":"map","version":"2.0","map":{"zoom":4,"center":[42.2257,-2.1021]}}');
+
+    // Change it back to version 3.0.
+    $this->drupalGet('admin/config/system/oe_webtools_maps');
+    $page = $this->getSession()->getPage();
+    $page->selectFieldOption('Map Version', '3.0');
+    $page->pressButton('Save configuration');
+
+    $this->drupalGet('/node/1');
+    $this->assertBodyContainsApplicationJson('{"service":"map","version":"3.0","map":{"zoom":4,"center":[42.2257,-2.1021]}}');
+
+    // Delete the config to emulate an upgrade scenario.
+    \Drupal::configFactory()->getEditable('oe_webtools_maps.settings')
+      ->delete();
+    $this->drupalGet('/node/1');
+    $this->assertBodyContainsApplicationJson('{"service":"map","version":"2.0","map":{"zoom":4,"center":[42.2257,-2.1021]}}');
+  }
+
+}