diff --git a/static/index.html b/static/index.html
index 08fc75a..17fd730 100644
--- a/static/index.html
+++ b/static/index.html
@@ -180,7 +180,7 @@
         </em>
       </p>
 
-      <h3>v2.5i/2.52i Board Security+ 2.0</h3>
+      <h3>v2.5i/2.52i/2.53i Board Security+ 2.0</h3>
       <div class="radios">
         <label>
           <input type="radio" name="type" value="v25iboard" checked />
@@ -190,11 +190,12 @@
       <p>
         <ul>
           <li><a href="https://user-images.githubusercontent.com/4663918/276749741-fe82ea10-e8f4-41d6-872f-55eec88d2aab.png">Version 2.5i Security + 1/2 Wiring Diagram</a></li>
+          <li><a href="https://user-images.githubusercontent.com/4663918/288449523-9ddf3da2-9eac-4be0-beed-11867dc8d446.png">Version 2.53i Security + 1/2 Wiring Diagram</a></li>
           <!-- <li><a href="https://user-images.githubusercontent.com/4663918/277838851-e338c3bf-4eda-447a-9e79-737aa1a622a0.png">Version 2.5i Dry Contact Wiring Diagram</a></li> -->
         </ul>
       </p>
 
-      <h3>v2.5i/2.52i Board Security+ 1.0</h3>
+      <h3>v2.5i/2.52i/2.53i Board Security+ 1.0</h3>
       <div class="radios">
         <label>
           <input type="radio" name="type" value="v25iboard_secplusv1" checked />
@@ -204,6 +205,7 @@
       <p>
         <ul>
           <li><a href="https://user-images.githubusercontent.com/4663918/276749741-fe82ea10-e8f4-41d6-872f-55eec88d2aab.png">Version 2.5i Security + 1/2 Wiring Diagram</a></li>
+          <li><a href="https://user-images.githubusercontent.com/4663918/288449523-9ddf3da2-9eac-4be0-beed-11867dc8d446.png">Version 2.53i Security + 1/2 Wiring Diagram</a></li>
           <!-- <li><a href="https://user-images.githubusercontent.com/4663918/277838851-e338c3bf-4eda-447a-9e79-737aa1a622a0.png">Version 2.5i Dry Contact Wiring Diagram</a></li> -->
         </ul>
       </p>