diff --git a/CHANGELOG.md b/CHANGELOG.md
index 62ab383a..fd0275a9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,8 @@
 # Change Log
 
+## [v4.9.1](https://github.com/plivo/plivo-php/releases/tag/v4.9.1) - 2020-07-21
+- Fix Get Call Details API response.
+
 ## [v4.9.0](https://github.com/plivo/plivo-php/releases/tag/v4.9.0) - 2020-05-28
 - Add JWT helper functions.
 
diff --git a/src/Plivo/Resources/Call/Call.php b/src/Plivo/Resources/Call/Call.php
index 2f6c1369..5570599e 100644
--- a/src/Plivo/Resources/Call/Call.php
+++ b/src/Plivo/Resources/Call/Call.php
@@ -46,7 +46,9 @@ function __construct(
             'billedDuration' => $response['billed_duration'],
             'callDirection' => $response['call_direction'],
             'callDuration' => $response['call_duration'],
+            'callState' => $response['call_state'],
             'callUuid' => $response['call_uuid'],
+            'conferenceUuid' => $response['conference_uuid'],
             'endTime' => $response['end_time'],
             'from' => $response['from_number'],
             'initiationTime' => $response['initiation_time'],
diff --git a/src/Plivo/Version.php b/src/Plivo/Version.php
index d02326d3..6a04959f 100644
--- a/src/Plivo/Version.php
+++ b/src/Plivo/Version.php
@@ -25,7 +25,7 @@ class Version
     /**
      * @const int PHP helper library patch number
      */
-    const PATCH = 0;
+    const PATCH = 1;
     /**
      * @return string
      */