diff --git a/layouts/partials/cta-newsletter.html b/layouts/partials/cta-newsletter.html
index 7bfd086..6f3addb 100644
--- a/layouts/partials/cta-newsletter.html
+++ b/layouts/partials/cta-newsletter.html
@@ -20,6 +20,7 @@
             <input type="hidden" name="l" value="b3297dce-4f02-42a5-9918-54499804323e" />
             <input type="hidden" name="lang" value="{{ site.LanguageCode }}" />
             <input type="email" name="email" required placeholder="j.postel@isi.edu" class="form-control my-3">
+            <div class="my-2 mx-auto h-captcha" data-sitekey="12a1e811-7f34-44ca-9e7c-fb1e9ade6b00"></div>
             <button type="submit" class="btn btn-lg btn-primary py-2" data-umami-event="cta-newsletter-join">
               {{ i18n "cta-newsletter-button1" }}
             </button>
diff --git a/layouts/partials/scripts.html b/layouts/partials/scripts.html
index 6031c5d..e53680f 100644
--- a/layouts/partials/scripts.html
+++ b/layouts/partials/scripts.html
@@ -1,5 +1,6 @@
 <script src="/js/jquery.slim.min.js"></script>
 <script src="/js/bootstrap.min.js"></script>
+<script src="https://js.hcaptcha.com/1/api.js" async defer></script>
 <script>
   window.addEventListener("scroll", function() {
     if (window.scrollY > 100) {