diff --git a/package.json b/package.json
index 20c450ef..488f7e88 100644
--- a/package.json
+++ b/package.json
@@ -44,8 +44,8 @@
   },
   "devDependencies": {
     "istanbul": "~0.4.3",
-    "jshint": "~2.6.0",
-    "mocha": "~1.21.4",
+    "jshint": "~2.9.4",
+    "mocha": "~3.4.1",
     "nock": "~2.11.0",
     "redis": "~0.12.1",
     "semver": "~1.1.4",
diff --git a/test/acceptance/ported/server_png8_format.js b/test/acceptance/ported/server_png8_format.js
index 30b5f2bc..a710cbd0 100644
--- a/test/acceptance/ported/server_png8_format.js
+++ b/test/acceptance/ported/server_png8_format.js
@@ -16,13 +16,13 @@ describe('server_png8_format', function() {
     var serverOptionsPng32 = ServerOptions;
     serverOptionsPng32.grainstore = _.clone(ServerOptions.grainstore);
     serverOptionsPng32.grainstore.mapnik_tile_format = 'png32';
-    var serverPng32 = new cartodbServer(serverOptionsPng32);
+    var serverPng32 = cartodbServer(serverOptionsPng32);
     serverPng32.setMaxListeners(0);
 
     var serverOptionsPng8 = ServerOptions;
     serverOptionsPng8.grainstore = _.clone(ServerOptions.grainstore);
     serverOptionsPng8.grainstore.mapnik_tile_format = 'png8:m=h';
-    var serverPng8 = new cartodbServer(serverOptionsPng8);
+    var serverPng8 = cartodbServer(serverOptionsPng8);
     serverPng8.setMaxListeners(0);