diff --git a/metadata/org.mozilla.rocket.yml b/metadata/org.mozilla.rocket.yml
index aa951479ec..b03b5b8f5f 100644
--- a/metadata/org.mozilla.rocket.yml
+++ b/metadata/org.mozilla.rocket.yml
@@ -107,8 +107,12 @@ MaintainerNotes: |-
 
     Upstream seems to always use a version code of 1, so we need to force it.
 
+    Cannot build newer versions, Mozilla made Firebase and GMS mandatory. :-(
+
 ArchivePolicy: 0 versions
 AutoUpdateMode: None
 UpdateCheckMode: None
 CurrentVersion: 1.4.0
 CurrentVersionCode: 4
+
+NoSourceSince: 1.5.0