diff --git a/contents.json b/contents.json
index b555d947..839f04f4 100644
--- a/contents.json
+++ b/contents.json
@@ -21291,7 +21291,7 @@
         "swift"
       ],
       "license": "other",
-      "source": "https://developer.apple.com/documentation/exposurenotification/building_an_app_to_notify_users_of_covid-19_exposure",
+      "source": "https://developer.apple.com/documentation/exposurenotification/building-an-app-to-notify-users-of-covid-19-exposure",
       "screenshots": [
         "https://github.com/dkhamsing/open-source-ios-apps/assets/4723115/6f35dab6-0cef-4d0a-bdf2-690d599de935"
       ],