diff --git a/swh/storage/listener.py b/swh/storage/listener.py
--- a/swh/storage/listener.py
+++ b/swh/storage/listener.py
@@ -66,7 +66,8 @@
     with db.transaction() as cur:
         for object_type in OBJECT_TYPES:
             db.register_listener('new_%s' % object_type, cur)
-            logging.debug('Registered to notify events %s' % object_type)
+            logging.debug(
+                'Registered to events for object type %s', object_type)
 
 
 def dispatch_notify(topic_prefix, producer, notify):
@@ -83,6 +84,13 @@
     producer.send(topic, value=decode(object_type, notify.payload))
 
 
+def run_once(db, producer, topic_prefix, poll_timeout):
+    for notify in db.listen_notifies(poll_timeout):
+        logging.debug('Notified by event %s' % notify)
+        dispatch_notify(topic_prefix, producer, notify)
+    producer.flush()
+
+
 def run_from_config(config):
     """Run the Software Heritage listener from configuration"""
     db = swh.storage.db.Db.connect(config['database'])
@@ -108,10 +116,7 @@
     poll_timeout = config['poll_timeout']
     try:
         while True:
-            for notify in db.listen_notifies(poll_timeout):
-                logging.debug('Notified by event %s' % notify)
-                dispatch_notify(topic_prefix, producer, notify)
-            producer.flush()
+            run_once(db, producer, topic_prefix, poll_timeout)
     except Exception:
         logging.exception("Caught exception")
         producer.flush()
diff --git a/swh/storage/sql/70-swh-triggers.sql b/swh/storage/sql/70-swh-triggers.sql
--- a/swh/storage/sql/70-swh-triggers.sql
+++ b/swh/storage/sql/70-swh-triggers.sql
@@ -116,6 +116,26 @@
   execute procedure notify_new_origin_visit();
 
 
+-- Asynchronous notification of modified origin visits
+create function notify_changed_origin_visit()
+  returns trigger
+  language plpgsql
+as $$
+  begin
+    perform pg_notify('new_origin_visit', json_build_object(
+      'origin', new.origin,
+      'visit', new.visit
+    )::text);
+    return null;
+  end;
+$$;
+
+create trigger notify_changed_origin_visit
+  after update on origin_visit
+  for each row
+  execute procedure notify_changed_origin_visit();
+
+
 -- Asynchronous notification of new release insertions
 create function notify_new_release()
   returns trigger
diff --git a/swh/storage/tests/test_listener.py b/swh/storage/tests/test_listener.py
--- a/swh/storage/tests/test_listener.py
+++ b/swh/storage/tests/test_listener.py
@@ -4,9 +4,67 @@
 # See top-level LICENSE file for more information
 
 import json
+import os
 import unittest
+import unittest.mock
 
-from swh.storage.listener import decode
+import pytest
+
+from swh.core.tests.db_testing import SingleDbTestFixture
+from swh.storage.tests.storage_testing import StorageTestFixture
+from swh.storage.tests.test_storage import TestStorageData
+import swh.storage.listener as listener
+from swh.storage.db import Db
+from . import SQL_DIR
+
+
+@pytest.mark.db
+class ListenerTest(StorageTestFixture, SingleDbTestFixture,
+                   TestStorageData, unittest.TestCase):
+    TEST_DB_NAME = 'softwareheritage-test-storage'
+    TEST_DB_DUMP = os.path.join(SQL_DIR, '*.sql')
+
+    def setUp(self):
+        super().setUp()
+        self.db = Db(self.conn)
+
+    def tearDown(self):
+        self.db.conn.close()
+        super().tearDown()
+
+    def test_notify(self):
+        class MockProducer:
+            def send(self, topic, value):
+                sent.append((topic, value))
+
+            def flush(self):
+                pass
+
+        listener.register_all_notifies(self.db)
+
+        # Add an origin and an origin visit
+        origin_id = self.storage.origin_add_one(self.origin)
+        visit = self.storage.origin_visit_add(origin_id, date=self.date_visit1)
+        visit_id = visit['visit']
+
+        sent = []
+        listener.run_once(self.db, MockProducer(), 'swh.tmp_journal.new', 10)
+        self.assertEqual(sent, [
+            ('swh.tmp_journal.new.origin',
+             {'type': 'git', 'url': 'file:///dev/null'}),
+            ('swh.tmp_journal.new.origin_visit',
+             {'origin': 1, 'visit': 1}),
+        ])
+
+        # Update the status of the origin visit
+        self.storage.origin_visit_update(origin_id, visit_id, status='full')
+
+        sent = []
+        listener.run_once(self.db, MockProducer(), 'swh.tmp_journal.new', 10)
+        self.assertEqual(sent, [
+            ('swh.tmp_journal.new.origin_visit',
+             {'origin': 1, 'visit': 1}),
+        ])
 
 
 class ListenerUtils(unittest.TestCase):
@@ -42,5 +100,5 @@
         }]
 
         for i, (object_type, obj) in enumerate(inputs):
-            actual_value = decode(object_type, obj)
+            actual_value = listener.decode(object_type, obj)
             self.assertEqual(actual_value, expected_inputs[i])