diff --git a/lib/package-managers/npm.js b/lib/package-managers/npm.js
index e7c583fa..332b4dd7 100644
--- a/lib/package-managers/npm.js
+++ b/lib/package-managers/npm.js
@@ -65,7 +65,7 @@ function viewOne(packageName, field, currentVersion) {
  */
 function viewMany(packageName, fields, currentVersion) {
     if (currentVersion && (!semver.validRange(currentVersion) || versionUtil.isWildCard(currentVersion))) {
-        return Promise.resolve();
+        return Promise.resolve({});
     }
 
     npmConfig['full-metadata'] = _.includes(fields, 'time');
@@ -224,7 +224,7 @@ module.exports = {
         return viewMany(packageName, ['time', 'versions'], currentVersion)
             .then(result => {
                 const versions = doesSatisfyEnginesNode(result.versions, options.enginesNode);
-                return Object.keys(result.time).reduce((accum, key) =>
+                return _.keys(result.time).reduce((accum, key) =>
                     accum.concat(_.includes(TIME_FIELDS, key) || _.includes(versions, key) ? key : []), []
                 );
             })