diff --git a/core/modules/migrate_drupal_ui/tests/src/Functional/MigrateUpgradeTestBase.php b/core/modules/migrate_drupal_ui/tests/src/Functional/MigrateUpgradeTestBase.php
index 5cf9f25484..98c05aaef4 100644
--- a/core/modules/migrate_drupal_ui/tests/src/Functional/MigrateUpgradeTestBase.php
+++ b/core/modules/migrate_drupal_ui/tests/src/Functional/MigrateUpgradeTestBase.php
@@ -160,7 +160,7 @@ public function testMigrateUpgrade() {
     $this->assertText('Resolve the issue below to continue the upgrade.');
 
     $this->drupalPostForm(NULL, $edits, t('Review upgrade'));
-    $session->pageTextContains('Content may be overwritten');
+    $session->pageTextContains('WARNING: Content may be overwritten on your new site.');
     $session->pageTextContains('There is conflicting content of these types:');
     $session->pageTextContains('aggregator feed entities');
     $session->pageTextContains('aggregator feed item entities');
@@ -173,7 +173,7 @@ public function testMigrateUpgrade() {
     $session->pageTextContains('content item revisions');
     $session->pageTextContains('content items');
     $session->pageTextContains('There is translated content of these types:');
-    $this->drupalPostForm(NULL, [], t('I acknowledge I may lose data, continue anyway.'));
+    $this->drupalPostForm(NULL, [], t('I acknowledge I may lose data. Continue anyway.'));
     $this->assertResponse(200);
     $this->assertText('Upgrade analysis report');
     // Ensure we get errors about missing modules.
@@ -193,8 +193,8 @@ public function testMigrateUpgrade() {
     $session->fieldExists('mysql[host]');
 
     $this->drupalPostForm(NULL, $edits, t('Review upgrade'));
-    $session->pageTextContains('Content may be overwritten');
-    $this->drupalPostForm(NULL, [], t('I acknowledge I may lose data, continue anyway.'));
+    $session->pageTextContains('WARNING: Content may be overwritten on your new site.');
+    $this->drupalPostForm(NULL, [], t('I acknowledge I may lose data. Continue anyway.'));
     $session->statusCodeEquals(200);
     $session->pageTextContains('Upgrade analysis report');
     // Ensure there are no errors about the missing modules from the test module.