diff --git a/lib/PayPal/Common/PPModel.php b/lib/PayPal/Common/PPModel.php
index 37f6afe..5b6800b 100644
--- a/lib/PayPal/Common/PPModel.php
+++ b/lib/PayPal/Common/PPModel.php
@@ -218,7 +218,10 @@ class PPModel
      */
     public function toJSON($options = 0)
     {
-        return json_encode($this->toArray(), $options);
+        // Because of PHP Version 5.3, we cannot use JSON_UNESCAPED_SLASHES option
+        // Instead we would use the str_replace command for now.
+        // TODO: Replace this code with return json_encode($this->toArray(), $options | 64); once we support PHP >= 5.4
+        return str_replace('\\/', '/', json_encode($this->toArray(), $options));
     }
 
     /**
diff --git a/tests/PayPal/Test/Api/FlowConfigTest.php b/tests/PayPal/Test/Api/FlowConfigTest.php
index cd8d20e..8df6953 100644
--- a/tests/PayPal/Test/Api/FlowConfigTest.php
+++ b/tests/PayPal/Test/Api/FlowConfigTest.php
@@ -18,7 +18,7 @@ class FlowConfigTest extends \PHPUnit_Framework_TestCase
      */
     public static function getJson()
     {
-        return json_encode(json_decode('{"landing_page_type":"TestSample","bank_txn_pending_url":"http://www.google.com"}'));
+        return '{"landing_page_type":"TestSample","bank_txn_pending_url":"http://www.google.com"}';
     }
 
     /**
diff --git a/tests/PayPal/Test/Api/WebProfileTest.php b/tests/PayPal/Test/Api/WebProfileTest.php
index 0c0345b..9adf308 100644
--- a/tests/PayPal/Test/Api/WebProfileTest.php
+++ b/tests/PayPal/Test/Api/WebProfileTest.php
@@ -22,7 +22,7 @@ class WebProfileTest extends \PHPUnit_Framework_TestCase
      */
     public static function getJson()
     {
-        return json_encode(json_decode('{"id":"TestSample","name":"TestSample","flow_config":' .FlowConfigTest::getJson() . ',"input_fields":' .InputFieldsTest::getJson() . ',"presentation":' .PresentationTest::getJson() . '}'));
+        return '{"id":"TestSample","name":"TestSample","flow_config":' .FlowConfigTest::getJson() . ',"input_fields":' .InputFieldsTest::getJson() . ',"presentation":' .PresentationTest::getJson() . '}';
     }
 
     /**