diff --git a/lib/hook.js b/lib/hook.js
index 31835cc..e53f8c8 100644
--- a/lib/hook.js
+++ b/lib/hook.js
@@ -2,8 +2,8 @@
 
 module.exports = function flagpoleHook(sails) {
 
-  let moduleUtils = require('./utils/module-utils');
-  let _ = require('lodash');
+  var moduleUtils = require('./utils/module-utils');
+  var _ = require('lodash');
 
   return {
 
@@ -25,7 +25,7 @@ module.exports = function flagpoleHook(sails) {
     },
 
     loadModules: function (cb) {
-      let hook = this;
+      var hook = this;
       moduleUtils.loadResponses(sails, function loadedflagpoleResponseModules(err, responseDefs) {
         if (err) return cb(err);
         // Register responses as middleware
diff --git a/lib/utils/model-utils.js b/lib/utils/model-utils.js
index d3bad51..c8d119f 100644
--- a/lib/utils/model-utils.js
+++ b/lib/utils/model-utils.js
@@ -1,10 +1,10 @@
 'use strict';
 
-let pluralize = require('pluralize');
+var pluralize = require('pluralize');
 
 // Only attributes which are not primary key ('id') or have an alias (relationship)
 exports.getOwnAttributes = function (Model) {
-  let ownAttrs = [];
+  var ownAttrs = [];
   Object.keys(Model.definition).forEach(function (key) {
     if (!Model.definition[key].primaryKey && !Model.definition[key].alias) {
       ownAttrs.push(key);
@@ -24,7 +24,7 @@ exports.getRef = function (Model, cb) {
 
 // Only strips primary key ('id')
 exports.getAttributes = function (Model) {
-  let attrs = [];
+  var attrs = [];
   Object.keys(Model._attributes).forEach(function (key) {
     if (!Model._attributes[key].primaryKey) {
       attrs.push(key);
@@ -40,9 +40,9 @@ exports.getModelName = function (req) {
 
 // Returns singular-ized model names of related models
 exports.getRelatedModelNames = function (req) {
-  let rels = [];
+  var rels = [];
   req.options.associations.forEach(function (assoc) {
-    let model = pluralize(assoc.alias, 1);
+    var model = pluralize(assoc.alias, 1);
     rels.push(model);
   });
   return rels;
diff --git a/lib/utils/module-utils.js b/lib/utils/module-utils.js
index a34f021..10861e7 100644
--- a/lib/utils/module-utils.js
+++ b/lib/utils/module-utils.js
@@ -1,8 +1,8 @@
 'use strict';
 
-let buildDictionary = require('sails-build-dictionary');
-let path = require('path');
-let _ = require('lodash');
+var buildDictionary = require('sails-build-dictionary');
+var path = require('path');
+var _ = require('lodash');
 
 function bindToSails(sails, cb) {
   return function (err, modules) {