diff --git a/facets.libraries.yml b/facets.libraries.yml
index 62daaf3..84033f1 100644
--- a/facets.libraries.yml
+++ b/facets.libraries.yml
@@ -26,5 +26,6 @@ drupal.facets.checkbox-widget:
   js:
     js/checkbox-widget.js: {}
   dependencies:
-    - core/jquery
     - core/drupal
+    - core/jquery
+    - core/jquery.once
diff --git a/tests/src/FunctionalJavascript/WidgetJSTest.php b/tests/src/FunctionalJavascript/WidgetJSTest.php
index 8ff6311..7e4ba68 100644
--- a/tests/src/FunctionalJavascript/WidgetJSTest.php
+++ b/tests/src/FunctionalJavascript/WidgetJSTest.php
@@ -88,7 +88,10 @@ class WidgetJSTest extends JavascriptTestBase {
     foreach ($list_items as $list_item) {
       $this->assertEquals('li', $list_item->getTagName());
       $this->assertTrue(strpos($list_item->getHtml(), '<a href') !== FALSE, 'Link found in list item.');
+      $this->assertTrue(strpos($list_item->getHtml(), '<input type="checkbox" class="facets-checkbox"') !== FALSE, 'Link found in list item.');
     }
+
+    $this->getSession()->getPage()->checkField('llama-item');
   }
 
   /**