diff --git a/composer.json b/composer.json
index 1cd9798..dc93b34 100644
--- a/composer.json
+++ b/composer.json
@@ -6,5 +6,8 @@
   "support": {
     "issues": "https://www.drupal.org/project/issues/views_accordion"
   },
+  "require": {
+    "drupal/jquery_ui_accordion": "^1.0"
+  },
   "license": "GPL-2.0+"
 }
diff --git a/tests/src/Functional/ViewsAccordionTest.php b/tests/src/Functional/ViewsAccordionTest.php
index 626f0b3..13f53c7 100644
--- a/tests/src/Functional/ViewsAccordionTest.php
+++ b/tests/src/Functional/ViewsAccordionTest.php
@@ -14,6 +14,11 @@ class ViewsAccordionTest extends BrowserTestBase {
   /**
    * {@inheritdoc}
    */
+  protected $defaultTheme = 'stark';
+
+  /**
+   * {@inheritdoc}
+   */
   public static $modules = [
     'views_accordion_test',
     'views_ui',
diff --git a/tests/src/FunctionalJavascript/ViewsAccordionTest.php b/tests/src/FunctionalJavascript/ViewsAccordionTest.php
index 2662544..c6e028e 100644
--- a/tests/src/FunctionalJavascript/ViewsAccordionTest.php
+++ b/tests/src/FunctionalJavascript/ViewsAccordionTest.php
@@ -16,6 +16,11 @@ class ViewsAccordionTest extends WebDriverTestBase {
   /**
    * {@inheritdoc}
    */
+  protected $defaultTheme = 'stark';
+
+  /**
+   * {@inheritdoc}
+   */
   public static $modules = [
     'views_accordion_test',
   ];
diff --git a/views_accordion.info.yml b/views_accordion.info.yml
index 6fe4535..9e0ab63 100755
--- a/views_accordion.info.yml
+++ b/views_accordion.info.yml
@@ -4,3 +4,6 @@ description: 'Provides an accordion views display plugin.'
 core: 8.x
 dependencies:
   - drupal:views
+  - jquery_ui_accordion:jquery_ui_accordion
+test_dependencies:
+  - jquery_ui_accordion:jquery_ui_accordion
diff --git a/views_accordion.libraries.yml b/views_accordion.libraries.yml
index c76d706..ed090b8 100644
--- a/views_accordion.libraries.yml
+++ b/views_accordion.libraries.yml
@@ -3,4 +3,4 @@ views_accordion.accordion:
     views-accordion.js: {}
   dependencies:
     - core/drupal
-    - core/jquery.ui.accordion
+    - jquery_ui_accordion/accordion