diff --git a/app/src/service-worker/disposePolyfill.ts b/app/src/service-worker/disposePolyfill.ts
new file mode 100644
index 0000000..0936e3e
--- /dev/null
+++ b/app/src/service-worker/disposePolyfill.ts
@@ -0,0 +1,4 @@
+//@ts-expect-error Not defined in Safari but TS does not know that
+Symbol.dispose ??= Symbol("Symbol.dispose");
+//@ts-expect-error Not defined in Safari but TS does not know that
+Symbol.asyncDispose ??= Symbol("Symbol.asyncDispose");
diff --git a/app/src/service-worker/serviceWorker.ts b/app/src/service-worker/serviceWorker.ts
index 64c617a..bf9969d 100644
--- a/app/src/service-worker/serviceWorker.ts
+++ b/app/src/service-worker/serviceWorker.ts
@@ -11,6 +11,7 @@ import {
   pushMessage,
 } from "../database";
 import { messagesUrl } from "../messagesUrl";
+import "./disposePolyfill";
 
 const initialization = init();