diff --git a/src/about.njk b/src/about.njk
index 70526f1..ef56442 100644
--- a/src/about.njk
+++ b/src/about.njk
@@ -117,7 +117,7 @@ pageScripts:
             <button type="reset">Reset Form</button>
           </div>
 
-          <div class="h-captcha" data-sitekey="b63e5b64-c6f2-4154-b5a6-77169a924022E"></div>
+          <div class="h-captcha" data-sitekey="b63e5b64-c6f2-4154-b5a6-77169a924022"></div>
 
           <div class="honeypot-field" aria-hidden="true">
             <label for="url">Website URL</label>