diff --git a/core/modules/node/src/Plugin/Search/NodeSearch.php b/core/modules/node/src/Plugin/Search/NodeSearch.php
index 13b27b0..428637f 100644
--- a/core/modules/node/src/Plugin/Search/NodeSearch.php
+++ b/core/modules/node/src/Plugin/Search/NodeSearch.php
@@ -354,6 +354,7 @@ protected function prepareResults(StatementInterface $found) {
         'langcode' => $node->language()->getId(),
       );
       $this->addCacheableDependency($node);
+      $this->addCacheableDependency($node->getOwner());
 
       if ($type->displaySubmitted()) {
         $result += array(
diff --git a/core/modules/search/src/Tests/SearchPageCacheTagsTest.php b/core/modules/search/src/Tests/SearchPageCacheTagsTest.php
index 6603fc7..5b953c2 100644
--- a/core/modules/search/src/Tests/SearchPageCacheTagsTest.php
+++ b/core/modules/search/src/Tests/SearchPageCacheTagsTest.php
@@ -68,6 +68,7 @@ function testSearchText() {
     $this->assertCacheTag('search_index');
     $this->assertCacheTag('search_index:node_search');
     $this->assertCacheTag('node:1');
+    $this->assertCacheTag('user:0');
     $this->assertCacheTag('rendered');
 
     // Updating a node should invalidate the search plugin's index cache tag.
@@ -79,6 +80,7 @@ function testSearchText() {
     $this->assertCacheTag('search_index');
     $this->assertCacheTag('search_index:node_search');
     $this->assertCacheTag('node:1');
+    $this->assertCacheTag('user:0');
     $this->assertCacheTag('rendered');
 
     // Deleting a node should invalidate the search plugin's index cache tag.