diff --git a/composer.json b/composer.json
index 51f45bc869802188a6c4c9b6d502da1e498461dd..b0fbc49d8eb99b8b943a62b9f6fc697370a7dde2 100644
--- a/composer.json
+++ b/composer.json
@@ -32,7 +32,7 @@
     "cweagans/composer-patches": "1.6.4",
     "drupal-composer/drupal-scaffold": "2.4.0",
     "drupal/drupal-library-installer-plugin": "0.3",
-    "drupal/core": "8.5.4",
+    "drupal/core": "8.5.5",
     "drupal/config_update": "1.5",
     "drupal/config_filter": "1.2",
     "drupal/config_ignore": "2.1",
diff --git a/drupal-org-core.make b/drupal-org-core.make
index 7a22cc8ee1770dd4cef13ede273a79afea1c9b03..5c4e086468fde9739e749dc3bca37869c9c1a8a2 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] = "8.5.4"
+projects[drupal][version] = "8.5.5"
 ;; 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/1356278-408--8.5.x-real.patch
 ;; Issue #2720101: Label (Title) not set for Views block (exposed filters in Block)