Drupal 9.0.0-alpha2

composer.json

@@ -7,7 +7,7 @@
         "webflo/drupal-core-strict": "*"
     },
     "require": {
-        "drupal/core": "9.0.x-dev",
+        "drupal/core": "9.0.0-alpha2",
         "asm89/stack-cors": "1.3.0",
         "composer/installers": "v1.8.0",
         "composer/semver": "1.5.1",