diff --git a/composer.json b/composer.json
index 4cc53bb200c500b63f81684c36f955a44241434a..e637bfeb54d59f57ea2b45d587d2864bea9d8e52 100644
--- a/composer.json
+++ b/composer.json
@@ -27,7 +27,7 @@
     "cweagans/composer-patches": "1.6.2",
     "drupal-composer/drupal-scaffold": "2.3.0",
     "drupal/drupal-library-installer-plugin": "0.3",
-    "drupal/core": "8.4.1",
+    "drupal/core": "8.4.2",
     "drupal/config_update": "1.4",
     "drupal/config_filter": "1.0",
     "drupal/config_ignore": "2.1",
diff --git a/drupal-org-core.make b/drupal-org-core.make
index b75455ca502499b049e5f73ba7cf6fba67553665..abf8c438b57a08d144cf072ec08792fb731a1eba 100644
--- a/drupal-org-core.make
+++ b/drupal-org-core.make
@@ -3,7 +3,7 @@ core = 8.x
 
 ; Drupal Core
 projects[drupal][type] = "core"
-projects[drupal][version] = "8.4.1"
+projects[drupal][version] = "8.4.2"
 ;; Issue #1356276: Allow profiles to provide a base_parent profile and load them in the correct order
 projects[drupal][patch][] = https://www.drupal.org/files/issues/1356276-408--8.4.x.patch
 ;; Issue #2720101: Label (Title) not set for Views block (exposed filters in Block)