diff --git a/docs/classes/LINE-Clients-ManageAudience-Model-CreateAudienceGroupResponse.html b/docs/classes/LINE-Clients-ManageAudience-Model-CreateAudienceGroupResponse.html
index cbba584f5..4d789148d 100644
--- a/docs/classes/LINE-Clients-ManageAudience-Model-CreateAudienceGroupResponse.html
+++ b/docs/classes/LINE-Clients-ManageAudience-Model-CreateAudienceGroupResponse.html
@@ -389,7 +389,7 @@ <h3 id="toc">
             <dt class="phpdocumentor-table-of-contents__entry -method -public">
     <a href="classes/LINE-Clients-ManageAudience-Model-CreateAudienceGroupResponse.html#method_getExpireTimestamp">getExpireTimestamp()</a>
     <span>
-                                &nbsp;: float|null    </span>
+                                &nbsp;: int|null    </span>
 </dt>
 <dd>Gets expireTimestamp</dd>
 
@@ -1029,7 +1029,7 @@ <h4 class="phpdocumentor-element__name" id="property_openAPITypes">
     <span class="phpdocumentor-signature__visibility">protected</span>
     <span class="phpdocumentor-signature__static">static</span>    <span class="phpdocumentor-signature__type">array&lt;string|int, string&gt;</span>
     <span class="phpdocumentor-signature__name">$openAPITypes</span>
-     = <span class="phpdocumentor-signature__default-value">[&#039;audienceGroupId&#039; =&gt; &#039;int&#039;, &#039;createRoute&#039; =&gt; &#039;string&#039;, &#039;type&#039; =&gt; &#039;\\LINE\\Clients\\ManageAudience\\Model\\AudienceGroupType&#039;, &#039;description&#039; =&gt; &#039;string&#039;, &#039;created&#039; =&gt; &#039;int&#039;, &#039;permission&#039; =&gt; &#039;string&#039;, &#039;expireTimestamp&#039; =&gt; &#039;float&#039;, &#039;isIfaAudience&#039; =&gt; &#039;bool&#039;]</span></code>
+     = <span class="phpdocumentor-signature__default-value">[&#039;audienceGroupId&#039; =&gt; &#039;int&#039;, &#039;createRoute&#039; =&gt; &#039;string&#039;, &#039;type&#039; =&gt; &#039;\\LINE\\Clients\\ManageAudience\\Model\\AudienceGroupType&#039;, &#039;description&#039; =&gt; &#039;string&#039;, &#039;created&#039; =&gt; &#039;int&#039;, &#039;permission&#039; =&gt; &#039;string&#039;, &#039;expireTimestamp&#039; =&gt; &#039;int&#039;, &#039;isIfaAudience&#039; =&gt; &#039;bool&#039;]</span></code>
 
     
     
@@ -1375,14 +1375,14 @@ <h4 class="phpdocumentor-element__name" id="method_getExpireTimestamp">
 
     <code class="phpdocumentor-code phpdocumentor-signature ">
     <span class="phpdocumentor-signature__visibility">public</span>
-                    <span class="phpdocumentor-signature__name">getExpireTimestamp</span><span>(</span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">float|null</span></code>
+                    <span class="phpdocumentor-signature__name">getExpireTimestamp</span><span>(</span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">int|null</span></code>
 
     
     
     
 
         <h5 class="phpdocumentor-return-value__heading">Return values</h5>
-    <span class="phpdocumentor-signature__response_type">float|null</span>
+    <span class="phpdocumentor-signature__response_type">int|null</span>
             &mdash;
         
     
@@ -2211,14 +2211,14 @@ <h4 class="phpdocumentor-element__name" id="method_setExpireTimestamp">
 
     <code class="phpdocumentor-code phpdocumentor-signature ">
     <span class="phpdocumentor-signature__visibility">public</span>
-                    <span class="phpdocumentor-signature__name">setExpireTimestamp</span><span>(</span><span class="phpdocumentor-signature__argument"><span class="phpdocumentor-signature__argument__return-type">float|null&nbsp;</span><span class="phpdocumentor-signature__argument__name">$expireTimestamp</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">self</span></code>
+                    <span class="phpdocumentor-signature__name">setExpireTimestamp</span><span>(</span><span class="phpdocumentor-signature__argument"><span class="phpdocumentor-signature__argument__return-type">int|null&nbsp;</span><span class="phpdocumentor-signature__argument__name">$expireTimestamp</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">self</span></code>
 
     
         <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
     <dl class="phpdocumentor-argument-list">
                     <dt class="phpdocumentor-argument-list__entry">
                 <span class="phpdocumentor-signature__argument__name">$expireTimestamp</span>
-                : <span class="phpdocumentor-signature__argument__return-type">float|null</span>
+                : <span class="phpdocumentor-signature__argument__return-type">int|null</span>
                             </dt>
             <dd class="phpdocumentor-argument-list__definition">
                     <section class="phpdocumentor-description"><p>Time of audience expiration. Only returned for specific audiences.</p>
diff --git a/line-openapi b/line-openapi
index f8dd5676b..69c7f21a2 160000
--- a/line-openapi
+++ b/line-openapi
@@ -1 +1 @@
-Subproject commit f8dd5676be4d2ff473ecd834a4376bbb8c250dcb
+Subproject commit 69c7f21a2a0a7bfc4870346a565d75105e432128
diff --git a/src/clients/manage-audience/lib/Model/CreateAudienceGroupResponse.php b/src/clients/manage-audience/lib/Model/CreateAudienceGroupResponse.php
index b29ed6fc4..064c55c06 100644
--- a/src/clients/manage-audience/lib/Model/CreateAudienceGroupResponse.php
+++ b/src/clients/manage-audience/lib/Model/CreateAudienceGroupResponse.php
@@ -79,7 +79,7 @@ class CreateAudienceGroupResponse implements ModelInterface, ArrayAccess, \JsonS
         'description' => 'string',
         'created' => 'int',
         'permission' => 'string',
-        'expireTimestamp' => 'float',
+        'expireTimestamp' => 'int',
         'isIfaAudience' => 'bool'
     ];
 
@@ -585,7 +585,7 @@ public function setPermission($permission)
     /**
      * Gets expireTimestamp
      *
-     * @return float|null
+     * @return int|null
      */
     public function getExpireTimestamp()
     {
@@ -595,7 +595,7 @@ public function getExpireTimestamp()
     /**
      * Sets expireTimestamp
      *
-     * @param float|null $expireTimestamp Time of audience expiration. Only returned for specific audiences.
+     * @param int|null $expireTimestamp Time of audience expiration. Only returned for specific audiences.
      *
      * @return self
      */