diff --git a/server/version.php b/server/version.php
index 440d8b3..bd2885e 100644
--- a/server/version.php
+++ b/server/version.php
@@ -1,5 +1,5 @@
 <?php
 
-	define('PWA_VERSION', '1.10.3h1');
+	define('PWA_VERSION', '1.10.3h2');
 
 ?>
diff --git a/service-worker.js.php b/service-worker.js.php
index d873f58..e38ecd7 100644
--- a/service-worker.js.php
+++ b/service-worker.js.php
@@ -311,3 +311,16 @@ self.addEventListener('notificationclick', function(event) {
 		clients.openWindow(url)
 	);
 });
+
+self.addEventListener('pushsubscriptionchange', function(event) {
+	var formData = new URLSearchParams();
+	formData.append('old', JSON.stringify(event.oldSubscription));
+	formData.append('new', JSON.stringify(event.newSubscription));
+	event.waitUntil(
+		fetch('<?php echo QUERY_URL; ?>update_subscription', {
+			method: 'POST',
+			cache: 'no-cache',
+			body: formData
+		})
+	);
+});