diff --git a/CHANGELOG.md b/CHANGELOG.md
index d00be6a3..33427b39 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,9 @@
 # Change Log
+## [4.66.1](https://github.com/plivo/plivo-php/tree/v4.66.1)(2024-10-10)
+**Feature - Dtmf param in Create, Get and List Session**
+- Support for the `dtmf` parameter in voice verify session request
+- Added support for `dtmf` in GET and LIST verify session.
+- 
 ## [4.66.0](https://github.com/plivo/plivo-php/tree/v4.66.0)(2024-09-30)
 **Feature - Adding new param support for Number Masking session with single party **
 - Added `create_session_with_single_party`, `virtual_number_cooloff_period` and `force_pin_authentication` attributes in Masking Session
diff --git a/src/Plivo/Resources/Verify/VerifySession.php b/src/Plivo/Resources/Verify/VerifySession.php
index aea1b534..474b796d 100644
--- a/src/Plivo/Resources/Verify/VerifySession.php
+++ b/src/Plivo/Resources/Verify/VerifySession.php
@@ -25,6 +25,7 @@
  * @property ?string $charges
  * @property string $created_at
  * @property string $updated_at
+ * @property ?int $dtmf
  */
 class VerifySession extends Resource
 {
@@ -86,4 +87,4 @@ public function __construct(
     public function __debugInfo() {
         return $this->properties;
     }
-}
\ No newline at end of file
+}
diff --git a/src/Plivo/Version.php b/src/Plivo/Version.php
index 64e90e2d..85e93979 100644
--- a/src/Plivo/Version.php
+++ b/src/Plivo/Version.php
@@ -26,7 +26,7 @@ class Version
      * @const int PHP helper library patch number
      */
 
-    const PATCH = 0;
+    const PATCH = 1;
 
     /**
      * @return string
diff --git a/tests/Mocks/verifySessionListResponse.json b/tests/Mocks/verifySessionListResponse.json
index bfb3aca5..2db47111 100644
--- a/tests/Mocks/verifySessionListResponse.json
+++ b/tests/Mocks/verifySessionListResponse.json
@@ -12,7 +12,7 @@
           "app_uuid": "854f110a-6244-4481-9d28-dddf58c7014b",
           "alias": "default_app",
           "recipient": "918097480999",
-          "channel": "sms",
+          "channel": "voice",
           "status": "verified",
           "locale":"en",
           "count": 1,
@@ -21,10 +21,11 @@
           "destination_network": "AirTel",
           "attempt_details": [
               {
-                  "channel": "sms",
+                  "channel": "voice",
                   "attempt_uuid": "3ada0edc-849a-49f4-aae6-2de209955829",
                   "status": "delivered",
-                  "time": "2023-07-28T17:20:39.278163+05:30"
+                  "time": "2023-07-28T17:20:39.278163+05:30",
+                  "dtmf": 4
               }
           ],
           "charges": {