diff --git a/src/Api.php b/src/Api.php
index ba65685..71fc746 100644
--- a/src/Api.php
+++ b/src/Api.php
@@ -48,7 +48,7 @@ use RuntimeException;
  */
 class Api
 {
-    public const string LIBRARY_VERSION = '1.3.3';
+    public const string LIBRARY_VERSION = '1.4.0';
 
     public const string API_VERSION = '1.2.5';