diff --git a/core/modules/taxonomy/taxonomy.routing.yml b/core/modules/taxonomy/taxonomy.routing.yml
index 203cbd2..f2935d0 100644
--- a/core/modules/taxonomy/taxonomy.routing.yml
+++ b/core/modules/taxonomy/taxonomy.routing.yml
@@ -2,3 +2,5 @@ taxonomy_autocomplete:
   pattern: '/taxonomy/autocomplete/{field_name}/{tags_typed}'
   defaults:
     _controller: '\Drupal\taxonomy\TaxonomyRouteController::autocomplete'
+  requirements:
+    _permission: 'access content'