diff --git a/aio/content/marketing/resources.json b/aio/content/marketing/resources.json
index 07a1954cbd..ad6374cce1 100644
--- a/aio/content/marketing/resources.json
+++ b/aio/content/marketing/resources.json
@@ -590,7 +590,7 @@
           "testing-angular-guide": {
             "title": "Testing Angular",
             "desc": "A Guide to Robust Angular Applications (free online book and e-book)",
-            "url": "https://molily.de/testing-angular",
+            "url": "https://testing-angular.com",
             "logo": ""
           },
           "butter-cms": {