diff --git a/webextension/manifest.json b/webextension/manifest.json
index 15731e0..f8548a2 100644
--- a/webextension/manifest.json
+++ b/webextension/manifest.json
@@ -13,7 +13,7 @@
     "gecko": {
       "id": "testpilot-containers@mozilla.org",
       "strict_min_version": "50.0",
-      "update_url": "https://testpilot.firefox.com/files/testpilot-containers@mozilla.org/updates.json"
+      "update_url": "https://testpilot.firefox.com/files/@testpilot-containers/updates.json"
     }
   },