diff --git a/composer.json b/composer.json
index e091818..4d0fbc7 100644
--- a/composer.json
+++ b/composer.json
@@ -4,5 +4,7 @@
   "type": "drupal-module",
   "license": "GPL-2.0+",
   "minimum-stability": "dev",
-  "require": { }
+  "require": {
+    "drupal/core": "~8.3"
+  }
 }
diff --git a/default_content.info.yml b/default_content.info.yml
index 2e12d9c..2b6f397 100644
--- a/default_content.info.yml
+++ b/default_content.info.yml
@@ -6,3 +6,4 @@ core: 8.x
 dependencies:
   - hal
   - rest
+  - system (>=8.3.1)