diff --git a/core/lib/Drupal/Component/Utility/SafeStringTrait.php b/core/lib/Drupal/Component/Utility/SafeStringTrait.php
index 77afc8a..bd1ee75 100644
--- a/core/lib/Drupal/Component/Utility/SafeStringTrait.php
+++ b/core/lib/Drupal/Component/Utility/SafeStringTrait.php
@@ -68,7 +68,7 @@ public function count() {
   }
 
   /**
-   * Returns a representation of the object for use in JSON serialisation.
+   * Returns a representation of the object for use in JSON serialization.
    *
    * @return string
    *   The safe string content.
diff --git a/core/lib/Drupal/Core/StringTranslation/TranslationWrapper.php b/core/lib/Drupal/Core/StringTranslation/TranslationWrapper.php
index e764ed5..dffd2cf 100644
--- a/core/lib/Drupal/Core/StringTranslation/TranslationWrapper.php
+++ b/core/lib/Drupal/Core/StringTranslation/TranslationWrapper.php
@@ -119,7 +119,7 @@ public function __sleep() {
   }
 
   /**
-   * Returns a representation of the object for use in JSON serialisation.
+   * Returns a representation of the object for use in JSON serialization.
    *
    * @return string
    *   The safe string content.
diff --git a/core/lib/Drupal/Core/Template/Attribute.php b/core/lib/Drupal/Core/Template/Attribute.php
index dc4c13b..cc0d591 100644
--- a/core/lib/Drupal/Core/Template/Attribute.php
+++ b/core/lib/Drupal/Core/Template/Attribute.php
@@ -303,7 +303,7 @@ public function storage() {
   }
 
   /**
-   * Returns a representation of the object for use in JSON serialisation.
+   * Returns a representation of the object for use in JSON serialization.
    *
    * @return string
    *   The safe string content.