diff --git a/CHANGELOG.md b/CHANGELOG.md
index e20d753..5dcd885 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,9 @@
 # Change Log
+## [4.60.4](https://github.com/plivo/plivo-ruby/tree/v4.60.4) (2024-09-12)
+**Feature - Adding few optional parameters to the existing machine detection params**
+- Added six new optional machine detection params `machine_detection_maximum_speech_length`,`machine_detection_initial_silence`,`machine_detection_maximum_words`,`machine_detection_initial_greeting`,`machine_detection_silence`,`machine_detection_answer_time`
+
+
 ## [4.60.3](https://github.com/plivo/plivo-ruby/tree/v4.60.3) (2024-09-06)
 **Feature - Adding more attribute on mdr object**
 - Added `message_sent_time`, `message_updated_time` and `error-message` on get and list Message API
diff --git a/README.md b/README.md
index 01f02fd..5244a94 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ The Plivo Ruby SDK makes it simpler to integrate communications into your Ruby a
 Add this line to your application's Gemfile:
 
 ```ruby
-gem 'plivo', '>= 4.60.3'
+gem 'plivo', '>= 4.60.4'
 ```
 
 And then execute:
diff --git a/lib/plivo/resources/calls.rb b/lib/plivo/resources/calls.rb
index 5385d5f..2eaa176 100644
--- a/lib/plivo/resources/calls.rb
+++ b/lib/plivo/resources/calls.rb
@@ -346,6 +346,12 @@ def initialize(client, resource_list_json = nil)
       # @option options [Int] :machine_detection_time - Time allotted to analyze if the call has been answered by a machine. It should be an integer >= 2000 and <= 10000 and the unit is ms. The default value is 5000 ms.
       # @option options [String] :machine_detection_url - A URL where machine detection parameters will be sent by Plivo. This parameter should be used to make machine detection asynchronous
       # @option options [String] :machine_detection_method - The HTTP method which will be used by Plivo to request the machine_detection_url. Defaults to POST.
+      # @option options [int] machine_detection_maximum_speech_length - Time in milliseconds used to measure the length of speech activity.. It should be an integer >= 1000 and <= 6000 and the unit is ms. The default value is 5000 ms.
+      # @option options [int] machine_detection_initial_silence - The duration of initial silence when the call is answered. It should be an integer >= 2000 and <= 10000 and the unit is ms. The default value is 4500 ms.
+      # @option options [int] machine_detection_maximum_words - The maximum number of sentences detected.. It should be an integer >= 2 and <= 10. The default value is 3.
+      # @option options [int] machine_detection_initial_greeting - Indicates the maximum length of the initial greeting in milliseconds. It should be an integer >= 1000 and <= 5000 and the unit is ms. The default value is 1500 ms.
+      # @option options [int] machine_detection_silence - The silence after the initial greeting, expressed in milliseconds. It should be an integer >= 500 and <= 5000 and the unit is ms. The default value is 800 ms.
+      # @option options [int] machine_detection_answer_time - Time within which if the call is answered then the call has been considered as answered by a machine. It should be an integer >= 100 and <= 45000 and the unit is ms. The default value is 45000 ms.
       # @option options [String] :sip_headers- List of SIP headers in the form of 'key=value' pairs, separated by commas. E.g. head1=val1,head2=val2,head3=val3,...,headN=valN. The SIP headers are always prefixed with X-PH-. The SIP headers are present for every HTTP request made by the outbound call. Only [A-Z], [a-z] and [0-9] characters are allowed for the SIP headers key and value. Additionally, the '%' character is also allowed for the SIP headers value so that you can encode this value in the URL.
       # @option options [Int] :ring_timeout - Determines the time in seconds the call should ring. If the call is not answered within the ring_timeout value or the default value of 120s, it is canceled.
       # @option options [String] :parent_call_uuid - The call_uuid of the first leg in an ongoing conference call. It is recommended to use this parameter in scenarios where a member who is already present in the conference intends to add new members by initiating outbound API calls. This minimizes the delay in adding a new memeber to the conference.
diff --git a/lib/plivo/version.rb b/lib/plivo/version.rb
index e48e8fb..f9b69ad 100644
--- a/lib/plivo/version.rb
+++ b/lib/plivo/version.rb
@@ -1,3 +1,3 @@
 module Plivo
-  VERSION = "4.60.3".freeze
+  VERSION = "4.60.4".freeze
 end