diff --git a/core/modules/user/tests/src/Functional/UserLoginTest.php b/core/modules/user/tests/src/Functional/UserLoginTest.php
index 4e2c534bf64fe67c65ec28a5f65fae9bcf610c25..7dbbf6a4fae743b612a800edd52b5286783f8d01 100644
--- a/core/modules/user/tests/src/Functional/UserLoginTest.php
+++ b/core/modules/user/tests/src/Functional/UserLoginTest.php
@@ -19,11 +19,9 @@ class UserLoginTest extends BrowserTestBase {
   protected $defaultTheme = 'stark';
 
   /**
-   * Modules to install.
-   *
-   * @var array
+   * {@inheritdoc}
    */
-  public static $modules = ['dblog'];
+  protected static $modules = ['dblog'];
 
   /**
    * Tests login with destination.
diff --git a/core/modules/user/tests/src/Kernel/Controller/UserAuthenticationControllerTest.php b/core/modules/user/tests/src/Kernel/Controller/UserAuthenticationControllerTest.php
index b3c941cef155d30e67a1250d45f0ea5d2a07820b..23bdc6c8810210411d9078fc302f5bc3b20faddd 100644
--- a/core/modules/user/tests/src/Kernel/Controller/UserAuthenticationControllerTest.php
+++ b/core/modules/user/tests/src/Kernel/Controller/UserAuthenticationControllerTest.php
@@ -21,7 +21,7 @@ class UserAuthenticationControllerTest extends KernelTestBase {
   /**
    * {@inheritdoc}
    */
-  public static $modules = ['user'];
+  protected static $modules = ['user'];
 
   /**
    * @group legacy
diff --git a/core/modules/user/tests/src/Kernel/Form/UserLoginFormTest.php b/core/modules/user/tests/src/Kernel/Form/UserLoginFormTest.php
index 7737433d49bd285be3f63683110137ec81014256..5e9bf65de93d711e4c34caf8772a5d2b1188ba93 100644
--- a/core/modules/user/tests/src/Kernel/Form/UserLoginFormTest.php
+++ b/core/modules/user/tests/src/Kernel/Form/UserLoginFormTest.php
@@ -18,7 +18,7 @@ class UserLoginFormTest extends KernelTestBase {
   /**
    * {@inheritdoc}
    */
-  public static $modules = ['user'];
+  protected static $modules = ['user'];
 
   /**
    * @group legacy