diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7775e77c..6f14ccf5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,8 @@
 # Change Log
+## [4.57.0](https://github.com/plivo/plivo-php/tree/v4.57.0) (2023-09-13)
+**Feature - Number Masking**
+- Added Create, Delete, Update, Get and List Masking Session API
+
 ## [4.56.0](https://github.com/plivo/plivo-php/tree/v4.56.0) (2023-08-25)
 **Feature - Added New Param 'carrier_fees', 'carrier_fees_rate', 'destination_network' in Get Message and List Message APIs**
 - Added new params on message get and list response
diff --git a/src/Plivo/Version.php b/src/Plivo/Version.php
index 37d63815..57d4a19b 100644
--- a/src/Plivo/Version.php
+++ b/src/Plivo/Version.php
@@ -20,7 +20,7 @@ class Version
     /**
      * @const int PHP helper library minor version number
      */
-    const MINOR = 56;
+    const MINOR = 57;
 
     /**
      * @const int PHP helper library patch number