diff --git a/src/services/nostr/handler.ts b/src/services/nostr/handler.ts
index 6bb1fce2..c1037b83 100644
--- a/src/services/nostr/handler.ts
+++ b/src/services/nostr/handler.ts
@@ -3,7 +3,6 @@ import { SimplePool, Sub, Event, UnsignedEvent, getEventHash, finishEvent, relay
 import { encryptData, decryptData, getSharedSecret, decodePayload, encodePayload } from './nip44.js'
 import { getLogger } from '../helpers/logger.js'
 import { encodeNprofile } from '../../custom-nip19.js'
-const handledEvents: string[] = [] // TODO: - big memory leak here, add TTL
 type AppInfo = { appId: string, publicKey: string, privateKey: string, name: string }
 export type SendData = { type: "content", content: string, pub: string } | { type: "event", event: UnsignedEvent }
 export type NostrSend = (appId: string, data: SendData, relays?: string[] | undefined) => void
@@ -41,6 +40,20 @@ type EventResponse = {
 
 export type ChildProcessRequest = SettingsRequest | SendRequest
 export type ChildProcessResponse = ReadyResponse | EventResponse
+
+const EVENT_TTL_MS = 5 * 60 * 1000; // 5 minutes
+const CLEANUP_INTERVAL_SECONDS = 60
+const handledEvents: { eventId: string, addedAtUnix: number }[] = []
+const removeExpiredEvents = () => {
+    const now = Date.now();
+    for (let i = handledEvents.length - 1; i >= 0; i--) {
+        if (now - handledEvents[i].addedAtUnix > EVENT_TTL_MS) {
+            handledEvents.splice(i, 1);
+        }
+    }
+}
+setInterval(removeExpiredEvents, CLEANUP_INTERVAL_SECONDS * 1000);
+
 const send = (message: ChildProcessResponse) => {
     if (process.send) {
         process.send(message)
@@ -150,11 +163,11 @@ export default class Handler {
                 return
             }
             const eventId = e.id
-            if (handledEvents.includes(eventId)) {
+            if (handledEvents.find(e => e.eventId === eventId)) {
                 console.log("event already handled")
                 return
             }
-            handledEvents.push(eventId)
+            handledEvents.push({eventId, addedAtUnix: Date.now()});
             const startAtMs = Date.now()
             const startAtNano = process.hrtime.bigint().toString()
             const decoded = decodePayload(e.content)