core/modules/block/src/Tests/BlockSystemBrandingTest.php     | 1 -
 core/modules/system/src/Plugin/Block/SystemBrandingBlock.php | 1 -
 2 files changed, 2 deletions(-)

diff --git a/core/modules/block/src/Tests/BlockSystemBrandingTest.php b/core/modules/block/src/Tests/BlockSystemBrandingTest.php
index 448a1ca..7335350 100644
--- a/core/modules/block/src/Tests/BlockSystemBrandingTest.php
+++ b/core/modules/block/src/Tests/BlockSystemBrandingTest.php
@@ -41,7 +41,6 @@ public function testSystemBrandingSettings() {
     $assert_cache_tags = function() {
       $cache_tags = explode(' ', $this->drupalGetHeader('X-Drupal-Cache-Tags'));
       $this->assertTrue(in_array('config:system.site', $cache_tags));
-      $this->assertTrue(in_array('theme_global_setting', $cache_tags));
     };
 
     $site_logo_xpath = '//div[@id="block-site-branding"]//a[@class="site-logo"]';
diff --git a/core/modules/system/src/Plugin/Block/SystemBrandingBlock.php b/core/modules/system/src/Plugin/Block/SystemBrandingBlock.php
index 7dd5c54..b7c0b1b 100644
--- a/core/modules/system/src/Plugin/Block/SystemBrandingBlock.php
+++ b/core/modules/system/src/Plugin/Block/SystemBrandingBlock.php
@@ -192,7 +192,6 @@ public function build() {
   public function getCacheTags() {
     return Cache::mergeTags(
       parent::getCacheTags(),
-      ['theme_global_setting'],
       $this->configFactory->get('system.site')->getCacheTags()
     );
   }