diff --git a/docs/classes/CodeIgniter-Encryption-Handlers-SodiumHandler.html b/docs/classes/CodeIgniter-Encryption-Handlers-SodiumHandler.html
index aa9d93498..027bc39a1 100644
--- a/docs/classes/CodeIgniter-Encryption-Handlers-SodiumHandler.html
+++ b/docs/classes/CodeIgniter-Encryption-Handlers-SodiumHandler.html
@@ -341,7 +341,7 @@ <h4 id="toc-properties">
             <dt class="phpdocumentor-table-of-contents__entry -property -protected">
     <a class="" href="classes/CodeIgniter-Encryption-Handlers-SodiumHandler.html#property_key">$key</a>
     <span>
-                        &nbsp;: string            </span>
+                        &nbsp;: string|null            </span>
 </dt>
 <dd>Starter key</dd>
 
@@ -478,12 +478,14 @@ <h4 class="phpdocumentor-element__name" id="property_key">
     
     <code class="phpdocumentor-code phpdocumentor-signature ">
     <span class="phpdocumentor-signature__visibility">protected</span>
-        <span class="phpdocumentor-signature__type">string</span>
+        <span class="phpdocumentor-signature__type">string|null</span>
     <span class="phpdocumentor-signature__name">$key</span>
      = <span class="phpdocumentor-signature__default-value">&#039;&#039;</span></code>
 
     
-    
+        <section class="phpdocumentor-description"><p>Null is used for buffer cleanup.</p>
+</section>
+