diff --git a/composer.json b/composer.json
index 3000a861ed68d4569976351344d8be0c42094b89..755cb0fb61415ec825055e400ff57119c74a94bb 100644
--- a/composer.json
+++ b/composer.json
@@ -8,7 +8,7 @@
         "wikimedia/composer-merge-plugin": "^1.4"
     },
     "replace": {
-        "drupal/core": "^8.6"
+        "drupal/core": "^8.7"
     },
     "minimum-stability": "dev",
     "prefer-stable": true,
diff --git a/composer.lock b/composer.lock
index ac6ab7379f6b15b21ba2e24fa47eb2381990d880..bdf854c6af83d220fc5e52e3d376be589b047c2d 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "e64d8398c963abb6a608286320ff0d0c",
+    "content-hash": "d764df12b2cff2be49d45e95ecbeb5d7",
     "packages": [
         {
             "name": "asm89/stack-cors",
diff --git a/core/lib/Drupal.php b/core/lib/Drupal.php
index 0b37ca2a8ee8b7283abb16bf8db54b48dffe28b5..639d99c037f9a4ecaa6c89faed35edcf8c89c3f3 100644
--- a/core/lib/Drupal.php
+++ b/core/lib/Drupal.php
@@ -82,7 +82,7 @@ class Drupal {
   /**
    * The current system version.
    */
-  const VERSION = '8.6.0-dev';
+  const VERSION = '8.7.0-dev';
 
   /**
    * Core API compatibility.