diff --git a/src/tour/getTourFeatures.js b/src/tour/getTourFeatures.js
index 3c189a8..bcc75c1 100644
--- a/src/tour/getTourFeatures.js
+++ b/src/tour/getTourFeatures.js
@@ -149,7 +149,7 @@ const getBackButton = (intl, tour) => ({
 
 const getKnowMoreButton = (intl, url) => ({
   text: intl.formatMessage(intlMessages.knowMore),
-  action: () => { window.open(url); },
+  action: () => { window.open(url, '_blank', 'noopener,noreferrer'); },
   secondary: true,
 });