diff --git a/src/octoprint/plugins/announcements/static/js/announcements.js b/src/octoprint/plugins/announcements/static/js/announcements.js
index 00e34cb5..361bc9e5 100644
--- a/src/octoprint/plugins/announcements/static/js/announcements.js
+++ b/src/octoprint/plugins/announcements/static/js/announcements.js
@@ -195,7 +195,7 @@ $(function() {
                         limitedSummary += "...";
                     }
 
-                    text += "<li><a href='" + item.link + "' target='_blank'>" + cutAfterNewline(item.title) + "</a><br><small>" + formatTimeAgo(item.published) + "</small><p>" + limitedSummary + "</p></li>";
+                    text += "<li><a href='" + item.link + "' target='_blank' rel='noreferrer noopener'>" + cutAfterNewline(item.title) + "</a><br><small>" + formatTimeAgo(item.published) + "</small><p>" + limitedSummary + "</p></li>";
                 });
                 text += "</ul>";
 
diff --git a/src/octoprint/plugins/announcements/templates/announcements.jinja2 b/src/octoprint/plugins/announcements/templates/announcements.jinja2
index fb370733..5cb2653b 100644
--- a/src/octoprint/plugins/announcements/templates/announcements.jinja2
+++ b/src/octoprint/plugins/announcements/templates/announcements.jinja2
@@ -24,7 +24,7 @@
                         <!-- ko foreach: $data.data -->
                         <hr data-bind="visible: $index() > 0">
                         <article data-bind="css: {muted: $data.read}">
-                            <h3><a data-bind="text: $data.title, attr: {href: $data.url}"></a> <small data-bind="text: formatTimeAgo($data.published)"></small></h3>
+                            <h3><a data-bind="text: $data.title, attr: {href: $data.link}" target="_blank" rel="noreferrer noopener"></a> <small data-bind="text: formatTimeAgo($data.published)"></small></h3>
                             <div data-bind="html: $data.summary"></div>
                             <div class="actions">
                                 <small><a data-bind="click: function() { $root.markRead($parent.key, $data.published) }"><i class="icon-eye-open"></i> {{ _('Last read') }}</a></small>