Fix #6

Author: Axel Rindle

lib/check.js

@@ -70,8 +70,9 @@ const rest = (options, callback) => {
       }
       // Compare versions
       let found = false;
+      let version = null;
       for (i = 0, len = json.length; i < len; i++) {
-        let version = json[i];
+        version = json[i];
         if (semver.gt(version.tag_name, options.currentVersion)) {
           found = true;
           break;