diff --git a/src/Collection.php b/src/Collection.php
index 8e411a4..ff3cee8 100644
--- a/src/Collection.php
+++ b/src/Collection.php
@@ -163,7 +163,6 @@ class Collection
 
         if (self::$token != '') {
             $headers = array(
-                'Content-Type:application/json',
                 'Authorization: ' . self::$token
             );
             curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
diff --git a/src/Settings.php b/src/Settings.php
index f9304ac..5180cb6 100644
--- a/src/Settings.php
+++ b/src/Settings.php
@@ -41,7 +41,6 @@ class Settings
 
         if (self::$token != '') {
             $headers = array(
-                'Content-Type:application/json',
                 'Authorization: ' . self::$token
             );
             curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);