composer.json | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/composer.json b/composer.json
index 9f40969..423a25a 100644
--- a/composer.json
+++ b/composer.json
@@ -15,5 +15,7 @@
     },
     "license": "GPL-2.0+",
     "minimum-stability": "dev",
-    "require": {}
+    "require": {
+        "drupal/core": "^8.1.3"
+    }
 }