diff --git a/HISTORY.md b/HISTORY.md
index 8645147..1b4705b 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,5 +1,9 @@
 # createsend-php history
 
+## v5.1.3 - 15th May, 2017
+
+* Changed local API timeout from 10 sec to 20 sec
+
 ## v5.1.2 - 15th May, 2017
 
 * Added support for Behavioral Event data
diff --git a/README.md b/README.md
index 8d911f9..9ac471b 100644
--- a/README.md
+++ b/README.md
@@ -120,6 +120,8 @@ $wrap = new CS_REST_General($auth);
 $result = $wrap->get_clients();
 var_dump($result->response);
 ```
+## API Call Timeout
+You can set your local API call timeout time in createsend-php\class\transport.php line 11, in the CS_REST_CALL_TIMEOUT variable. Currently the default is 20 secs.
 
 ## Examples
 
diff --git a/class/base_classes.php b/class/base_classes.php
index 2c4f44d..f82fa77 100644
--- a/class/base_classes.php
+++ b/class/base_classes.php
@@ -4,7 +4,7 @@
 require_once dirname(__FILE__).'/transport.php';
 require_once dirname(__FILE__).'/log.php';
 
-defined('CS_REST_WRAPPER_VERSION') or define('CS_REST_WRAPPER_VERSION', '5.1.2');
+defined('CS_REST_WRAPPER_VERSION') or define('CS_REST_WRAPPER_VERSION', '5.1.3');
 defined('CS_HOST') or define('CS_HOST', 'api.createsend.com');
 defined('CS_OAUTH_BASE_URI') or define('CS_OAUTH_BASE_URI', 'https://'.CS_HOST.'/oauth');
 defined('CS_OAUTH_TOKEN_URI') or define('CS_OAUTH_TOKEN_URI', CS_OAUTH_BASE_URI.'/token');
diff --git a/class/transport.php b/class/transport.php
index 660f177..5c64c3f 100644
--- a/class/transport.php
+++ b/class/transport.php
@@ -5,10 +5,10 @@
 defined('CS_REST_PUT') or define('CS_REST_PUT', 'PUT');
 defined('CS_REST_DELETE') or define('CS_REST_DELETE', 'DELETE');
 if (false === defined('CS_REST_SOCKET_TIMEOUT')) {
-    define('CS_REST_SOCKET_TIMEOUT', 10);
+    define('CS_REST_SOCKET_TIMEOUT', 20);
 }
 if (false === defined('CS_REST_CALL_TIMEOUT')) {
-    define('CS_REST_CALL_TIMEOUT', 10);
+    define('CS_REST_CALL_TIMEOUT', 20);
 }
 
 if(!function_exists("CS_REST_TRANSPORT_get_available")) {