diff --git a/checks/remotesettings/push_timestamp.py b/checks/remotesettings/push_timestamp.py
index 0cf20de7..f7e78cb9 100644
--- a/checks/remotesettings/push_timestamp.py
+++ b/checks/remotesettings/push_timestamp.py
@@ -43,6 +43,10 @@ async def get_push_timestamp(uri) -> str:
 async def get_remotesettings_timestamp(uri) -> str:
     client = KintoClient(server_url=uri)
     entries = await client.get_monitor_changes(bust_cache=True)
+
+    # sort by timestamp desc as the records are returned by bucket/collection
+    entries.sort(key=lambda e: e["last_modified"], reverse=True)
+
     # Some collections are excluded (eg. preview)
     # https://github.com/mozilla-services/cloudops-deployment/blob/master/projects/kinto/puppet/modules/kinto/templates/kinto.ini.erb
     matched = [e for e in entries if "preview" not in e["bucket"]]
diff --git a/tests/checks/remotesettings/test_push_timestamp.py b/tests/checks/remotesettings/test_push_timestamp.py
index df361a8f..98d6ca88 100644
--- a/tests/checks/remotesettings/test_push_timestamp.py
+++ b/tests/checks/remotesettings/test_push_timestamp.py
@@ -18,7 +18,8 @@ async def test_positive(mock_responses):
         payload={
             "changes": [
                 {"id": "a", "bucket": "main-preview", "last_modified": 2000000000000},
-                {"id": "b", "bucket": "main", "last_modified": 1573086234731},
+                {"id": "b", "bucket": "main", "last_modified": 1273086234731},
+                {"id": "c", "bucket": "main", "last_modified": 1573086234731},
             ]
         },
     )