diff --git a/CHANGELOG.md b/CHANGELOG.md
index becd5e3b..0c11d32e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
+## 1.4.1 - 2018-01-19
+### Changed
+ - Fixed parameter names for Product Fees Estimates
+
 ## 1.4.0 - 2017-11-17
 ### Added
  - Travis support for PHP 7.1 and 7.2
diff --git a/includes/classes/AmazonProductFeeEstimate.php b/includes/classes/AmazonProductFeeEstimate.php
index 5cfa711b..435e4d44 100644
--- a/includes/classes/AmazonProductFeeEstimate.php
+++ b/includes/classes/AmazonProductFeeEstimate.php
@@ -95,14 +95,14 @@ public function setRequests($a){
                 $this->options['FeesEstimateRequestList.FeesEstimateRequest.'.$i.'.MarketplaceId'] = $x['MarketplaceId'];
                 $this->options['FeesEstimateRequestList.FeesEstimateRequest.'.$i.'.IdType'] = $x['IdType'];
                 $this->options['FeesEstimateRequestList.FeesEstimateRequest.'.$i.'.IdValue'] = $x['IdValue'];
-                $this->options['FeesEstimateRequestList.FeesEstimateRequest.'.$i.'.ListingPrice.CurrencyCode'] = $x['ListingPrice']['CurrencyCode'];
-                $this->options['FeesEstimateRequestList.FeesEstimateRequest.'.$i.'.ListingPrice.Value'] = $x['ListingPrice']['Value'];
+                $this->options['FeesEstimateRequestList.FeesEstimateRequest.'.$i.'.PriceToEstimateFees.ListingPrice.CurrencyCode'] = $x['ListingPrice']['CurrencyCode'];
+                $this->options['FeesEstimateRequestList.FeesEstimateRequest.'.$i.'.PriceToEstimateFees.ListingPrice.Amount'] = $x['ListingPrice']['Value'];
                 if (isset($x['Shipping']) && is_array($x['Shipping'])){
-                    $this->options['FeesEstimateRequestList.FeesEstimateRequest.'.$i.'.Shipping.CurrencyCode'] = $x['Shipping']['CurrencyCode'];
-                    $this->options['FeesEstimateRequestList.FeesEstimateRequest.'.$i.'.Shipping.Value'] = $x['Shipping']['Value'];
+                    $this->options['FeesEstimateRequestList.FeesEstimateRequest.'.$i.'.PriceToEstimateFees.Shipping.CurrencyCode'] = $x['Shipping']['CurrencyCode'];
+                    $this->options['FeesEstimateRequestList.FeesEstimateRequest.'.$i.'.PriceToEstimateFees.Shipping.Amount'] = $x['Shipping']['Value'];
                 }
                 if (array_key_exists('Points', $x)){
-                    $this->options['FeesEstimateRequestList.FeesEstimateRequest.'.$i.'.Points.PointsNumber'] = $x['Points'];
+                    $this->options['FeesEstimateRequestList.FeesEstimateRequest.'.$i.'.PriceToEstimateFees.Points.PointsNumber'] = $x['Points'];
                 }
                 $this->options['FeesEstimateRequestList.FeesEstimateRequest.'.$i.'.Identifier'] = $x['Identifier'];
                 $this->options['FeesEstimateRequestList.FeesEstimateRequest.'.$i.'.IsAmazonFulfilled'] = $x['IsAmazonFulfilled'];
diff --git a/test-cases/includes/classes/AmazonProductFeeEstimateTest.php b/test-cases/includes/classes/AmazonProductFeeEstimateTest.php
index 3c40a593..3a6a4493 100644
--- a/test-cases/includes/classes/AmazonProductFeeEstimateTest.php
+++ b/test-cases/includes/classes/AmazonProductFeeEstimateTest.php
@@ -62,22 +62,22 @@ public function testSetRequest() {
         $this->assertEquals('ASIN', $o[$pre.'1.IdType']);
         $this->assertArrayHasKey($pre.'1.IdValue', $o);
         $this->assertEquals('B00123ASIN', $o[$pre.'1.IdValue']);
-        $this->assertArrayHasKey($pre.'1.ListingPrice.CurrencyCode', $o);
-        $this->assertEquals('USD', $o[$pre.'1.ListingPrice.CurrencyCode']);
-        $this->assertArrayHasKey($pre.'1.ListingPrice.Value', $o);
-        $this->assertEquals('123', $o[$pre.'1.ListingPrice.Value']);
+        $this->assertArrayHasKey($pre.'1.PriceToEstimateFees.ListingPrice.CurrencyCode', $o);
+        $this->assertEquals('USD', $o[$pre.'1.PriceToEstimateFees.ListingPrice.CurrencyCode']);
+        $this->assertArrayHasKey($pre.'1.PriceToEstimateFees.ListingPrice.Amount', $o);
+        $this->assertEquals('123', $o[$pre.'1.PriceToEstimateFees.ListingPrice.Amount']);
         $this->assertArrayHasKey($pre.'1.Identifier', $o);
         $this->assertEquals('TEST123', $o[$pre.'1.Identifier']);
         $this->assertArrayHasKey($pre.'1.IsAmazonFulfilled', $o);
         $this->assertEquals('false', $o[$pre.'1.IsAmazonFulfilled']);
         $this->assertArrayHasKey($pre.'2.MarketplaceId', $o);
         $this->assertEquals('Mark II', $o[$pre.'2.MarketplaceId']);
-        $this->assertArrayHasKey($pre.'2.Shipping.CurrencyCode', $o);
-        $this->assertEquals('USD', $o[$pre.'2.Shipping.CurrencyCode']);
-        $this->assertArrayHasKey($pre.'2.Shipping.Value', $o);
-        $this->assertEquals('1.23', $o[$pre.'2.Shipping.Value']);
-        $this->assertArrayHasKey($pre.'2.Points.PointsNumber', $o);
-        $this->assertEquals('3', $o[$pre.'2.Points.PointsNumber']);
+        $this->assertArrayHasKey($pre.'2.PriceToEstimateFees.Shipping.CurrencyCode', $o);
+        $this->assertEquals('USD', $o[$pre.'2.PriceToEstimateFees.Shipping.CurrencyCode']);
+        $this->assertArrayHasKey($pre.'2.PriceToEstimateFees.Shipping.Amount', $o);
+        $this->assertEquals('1.23', $o[$pre.'2.PriceToEstimateFees.Shipping.Amount']);
+        $this->assertArrayHasKey($pre.'2.PriceToEstimateFees.Points.PointsNumber', $o);
+        $this->assertEquals('3', $o[$pre.'2.PriceToEstimateFees.Points.PointsNumber']);
 
         //setting again should reset
         $this->assertNull($this->object->setRequests(array($op)));