diff --git a/src/apps.js b/src/apps.js
index d8251b299..2a2fc46ea 100644
--- a/src/apps.js
+++ b/src/apps.js
@@ -1358,7 +1358,7 @@ function update(app, data, auditSource, callback) {
         args: { updateConfig },
         values,
         onFinished: (error) => {
-            eventlog.add(eventlog.ACTION_APP_UPDATE_FINISH, auditSource, { app, success: !error, errorMessage: error ? error.message : null });
+            eventlog.add(eventlog.ACTION_APP_UPDATE_FINISH, auditSource, { app, toManifest: manifest, fromManifest: app.manifest, success: !error, errorMessage: error ? error.message : null });
         }
     };
     addTask(appId, exports.ISTATE_PENDING_UPDATE, task, function (error, result) {
diff --git a/src/notifications.js b/src/notifications.js
index e0eb63466..84c5f4e4a 100644
--- a/src/notifications.js
+++ b/src/notifications.js
@@ -140,18 +140,20 @@ async function oomEvent(eventId, app, addon, containerId /*, event*/) {
     await add(eventId, title, message);
 }
 
-async function appUpdated(eventId, app) {
+async function appUpdated(eventId, app, fromManifest, toManifest) {
     assert.strictEqual(typeof eventId, 'string');
     assert.strictEqual(typeof app, 'object');
+    assert.strictEqual(typeof fromManifest, 'object');
+    assert.strictEqual(typeof toManifest, 'object');
 
     if (!app.appStoreId) return; // skip notification of dev apps
 
-    const tmp = app.manifest.description.match(/<upstream>(.*)<\/upstream>/i);
+    const tmp = toManifest.description.match(/<upstream>(.*)<\/upstream>/i);
     const upstreamVersion = (tmp && tmp[1]) ? tmp[1] : '';
-    const title = upstreamVersion ? `${app.manifest.title} at ${app.fqdn} updated to ${upstreamVersion} (package version ${app.manifest.version})`
-        : `${app.manifest.title} at ${app.fqdn} updated to package version ${app.manifest.version}`;
+    const title = upstreamVersion ? `${toManifest.title} at ${app.fqdn} updated to ${upstreamVersion} (package version ${toManifest.version})`
+        : `${toManifest.title} at ${app.fqdn} updated to package version ${toManifest.version}`;
 
-    await add(eventId, title, `The application installed at https://${app.fqdn} was updated.\n\nChangelog:\n${app.manifest.changelog}\n`);
+    await add(eventId, title, `The application installed at https://${app.fqdn} was updated.\n\nChangelog:\n${toManifest.changelog}\n`);
 }
 
 async function boxUpdated(eventId, oldVersion, newVersion) {
@@ -250,7 +252,7 @@ async function onEvent(id, action, source, data) {
     case eventlog.ACTION_APP_UPDATE_FINISH:
         if (source.username !== auditSource.CRON.username) return; // updated by user
         if (data.errorMessage) return; // the update indicator will still appear, so no need to notify user
-        return await appUpdated(id, data.app);
+        return await appUpdated(id, data.app, data.fromManifest, data.toManifest);
 
     case eventlog.ACTION_CERTIFICATE_RENEWAL:
     case eventlog.ACTION_CERTIFICATE_NEW: