diff --git a/data/interfaces/default/login.html b/data/interfaces/default/login.html
index dfc9290d..74edb2b1 100644
--- a/data/interfaces/default/login.html
+++ b/data/interfaces/default/login.html
@@ -109,7 +109,7 @@
     </div>
 </div>
 
-<script src="${http_root}js/jquery-2.1.4.min.js"></script>
+<script src="${http_root}js/jquery-3.5.1.min.js"></script>
 <script src="${http_root}js/platform.min.js"></script>
 <script src="${http_root}js/script.js${cache_param}"></script>
 <script>
diff --git a/data/interfaces/default/newsletter_preview.html b/data/interfaces/default/newsletter_preview.html
index 91567cdc..bfd5e917 100644
--- a/data/interfaces/default/newsletter_preview.html
+++ b/data/interfaces/default/newsletter_preview.html
@@ -31,7 +31,7 @@
     </div>
 </div>
 
-<script src="${http_root}js/jquery-2.1.4.min.js"></script>
+<script src="${http_root}js/jquery-3.5.1.min.js"></script>
 <script>
 $(document).ready(function () {
     var frame = $('<iframe></iframe>', {
diff --git a/data/interfaces/default/welcome.html b/data/interfaces/default/welcome.html
index 482da32a..d4395e13 100644
--- a/data/interfaces/default/welcome.html
+++ b/data/interfaces/default/welcome.html
@@ -248,7 +248,7 @@
     </div>
 </div>
 
-<script src="${http_root}js/jquery-2.1.4.min.js"></script>
+<script src="${http_root}js/jquery-3.5.1.min.js"></script>
 <script src="${http_root}js/bootstrap.min.js"></script>
 <script src="${http_root}js/selectize.min.js"></script>
 <script src="${http_root}js/platform.min.js"></script>