diff --git a/lib/config/definitions.js b/lib/config/definitions.js
index a5c353af8a0c4e79eae6f9d3286f7b30cdd45787..5e1f5c83460704d8c5b967b35f6ae97147c6fd9e 100644
--- a/lib/config/definitions.js
+++ b/lib/config/definitions.js
@@ -565,6 +565,14 @@ const options = [
     description: 'Requested reviewers for Pull Requests (GitHub only)',
     type: 'list',
   },
+  {
+    name: 'npm',
+    description: 'Configuration object for npm package.json renovation',
+    stage: 'repository',
+    type: 'json',
+    default: {},
+    mergeable: true,
+  },
   {
     name: 'meteor',
     description: 'Configuration object for meteor package.js renovation',