diff --git a/server.js b/server.js
index 3bfc8557550ac..accf7a7d14fa4 100644
--- a/server.js
+++ b/server.js
@@ -1687,10 +1687,10 @@ cache(function(data, match, sendBadge, request) {
 // CDNJS version integration
 camp.route(/^\/cdnjs\/v\/(.*)\.(svg|png|gif|jpg|json)$/,
 cache(function(data, match, sendBadge, request) {
-  var library = encodeURIComponent(match[1]);  // eg, "express" or "@user/express"
-  var format = match[2];
-  var apiUrl = 'https://api.cdnjs.com/libraries/' + library + '?fields=version';
-  var badgeData = getBadgeData('cdnjs', data);
+  const library = encodeURIComponent(match[1]);  // eg, "express" or "@user/express"
+  const format = match[2];
+  const apiUrl = 'https://api.cdnjs.com/libraries/' + library + '?fields=version';
+  const badgeData = getBadgeData('cdnjs', data);
   request(apiUrl, function(err, res, buffer) {
     if (err != null) {
       badgeData.text[1] = 'inaccessible';