diff --git a/tienda/templates/tienda/agregar_tarjeta.html b/tienda/templates/tienda/agregar_tarjeta.html
index 1b1b0a5..250d051 100644
--- a/tienda/templates/tienda/agregar_tarjeta.html
+++ b/tienda/templates/tienda/agregar_tarjeta.html
@@ -2,7 +2,7 @@
 {% load static %}
 
 {% block head %}
-<script src="https://js.stripe.com/v3/"></script>
+<script src="https://js.stripe.com/v3/" integrity="sha384-353f1ae25ae0929bea5f9379a594131b27e45a89d8f918dcc040c4ccbe6fd35fe6fd1d61ccc6e0c911c9b54325235904"></script>
 <style>
     #card-element {
         border: 1px solid #ced4da;