diff --git a/composer.json b/composer.json
index 77587409cf21db338b535315ef093644420b791f..3e1031f5abe4fa8b320d0a38dff6d50f12757a25 100644
--- a/composer.json
+++ b/composer.json
@@ -15,6 +15,7 @@
         }
     ],
     "require": {
+        "drupal/core": "^8.5",
         "drupal/metatag": "^1.3",
         "goalgorilla/rtseo.js": "^2.0"
     }
diff --git a/yoast_seo.info.yml b/yoast_seo.info.yml
index 47e9c9d17ead654d3d6023562e73c3aa790aff5d..c914c193061e566aa2b3573160c6728009359e2e 100644
--- a/yoast_seo.info.yml
+++ b/yoast_seo.info.yml
@@ -10,6 +10,7 @@ dependencies:
   - metatag
   - path
   - views
+  - system (>=8.5.0)
 
 test_dependencies:
   - node