diff --git a/tests/src/Functional/LayoutBuilderBooleanTest.php b/tests/src/Functional/LayoutBuilderBooleanTest.php
index e66e2af..448ddc8 100644
--- a/tests/src/Functional/LayoutBuilderBooleanTest.php
+++ b/tests/src/Functional/LayoutBuilderBooleanTest.php
@@ -19,7 +19,7 @@ class LayoutBuilderBooleanTest extends BrowserTestBase {
    *
    * @var array
    */
-  public static $modules = ['layout_builder_boolean_tests'];
+  protected static $modules = ['layout_builder_boolean_tests'];
 
   /**
    * {@inheritdoc}