diff --git a/UI/app_update.tsx b/UI/app_update.tsx
index 62282aa..0f8c1f5 100644
--- a/UI/app_update.tsx
+++ b/UI/app_update.tsx
@@ -365,9 +365,10 @@ export async function* UI_Interaction_Update(args: {
             }
             const profileEvent = await prepareNormalNostrEvent(
                 groupCreation.groupKey,
-                NostrKind.META_DATA,
-                [],
-                JSON.stringify(profileData),
+                {
+                    kind: NostrKind.META_DATA,
+                    content: JSON.stringify(profileData),
+                },
             );
             const err2 = pool.sendEvent(profileEvent);
             if (err2 instanceof Error) {
diff --git a/UI/relay-config.test.ts b/UI/relay-config.test.ts
index 2f6d414..683d410 100644
--- a/UI/relay-config.test.ts
+++ b/UI/relay-config.test.ts
@@ -68,7 +68,7 @@ Deno.test("Relay Config", async () => {
         {
             const err = await relayConfig.syncWithPool(pool);
             if (err != undefined) {
-                assertEquals(err.message, "wss://somewhere has been closed, can't wait for it to open");
+                assertEquals(err.message, "wss://somewhere/ has been closed, can't wait for it to open");
             }
 
             // add one relay to the pool directly
@@ -83,7 +83,7 @@ Deno.test("Relay Config", async () => {
             // will remove urls that's in the pool but not in the config
             const err2 = await relayConfig.syncWithPool(pool);
             if (err2 != undefined) {
-                assertEquals(err2.message, "wss://somewhere has been closed, can't wait for it to open");
+                assertEquals(err2.message, "wss://somewhere/ has been closed, can't wait for it to open");
             }
             assertEquals(pool.getRelays().map((r) => r.url), ["wss://relay.damus.io"]); // wirednet is removed
         }
diff --git a/database.test.ts b/database.test.ts
index 1bd5652..d98be85 100644
--- a/database.test.ts
+++ b/database.test.ts
@@ -12,7 +12,7 @@ Deno.test("Database", async () => {
     if (db instanceof Error) fail(db.message);
 
     const stream = db.subscribe();
-    const event_to_add = await prepareNormalNostrEvent(ctx, NostrKind.TEXT_NOTE, [], "1");
+    const event_to_add = await prepareNormalNostrEvent(ctx, { kind: NostrKind.TEXT_NOTE, content: "1" });
     await db.addEvent(event_to_add);
     assertEquals(
         db.events.map((e): NostrEvent => {
@@ -48,7 +48,7 @@ Deno.test("Database", async () => {
     await db.addEvent(event_to_add); //   add a duplicated event
     assertEquals(db.events.length, 1); // no changes
 
-    const event_to_add2 = await prepareNormalNostrEvent(ctx, NostrKind.TEXT_NOTE, [], "2");
+    const event_to_add2 = await prepareNormalNostrEvent(ctx, { kind: NostrKind.TEXT_NOTE, content: "2" });
     // console.log(event_to_add2.id, event_to_add.id)
     await db.addEvent(event_to_add2);
     const e2 = await stream.pop() as NostrEvent;
diff --git a/features/profile.ts b/features/profile.ts
index 1bbcd52..d045f25 100644
--- a/features/profile.ts
+++ b/features/profile.ts
@@ -51,9 +51,7 @@ export async function saveProfile(
 ) {
     const event = await prepareNormalNostrEvent(
         sender,
-        NostrKind.META_DATA,
-        [],
-        JSON.stringify(profile),
+        { kind: NostrKind.META_DATA, content: JSON.stringify(profile) },
     );
     pool.sendEvent(event);
 }
diff --git a/lib/nostr-ts b/lib/nostr-ts
index a232717..53303f1 160000
--- a/lib/nostr-ts
+++ b/lib/nostr-ts
@@ -1 +1 @@
-Subproject commit a2327172fdf711c2e3bf02d8fefe4b6dae9a2910
+Subproject commit 53303f151e4787ec46e1e77584508634129e6cfd
diff --git a/nostr.test.ts b/nostr.test.ts
index 024e5e0..dc51cca 100644
--- a/nostr.test.ts
+++ b/nostr.test.ts
@@ -50,9 +50,11 @@ Deno.test("Generate reply event", async () => {
 
     const message1 = await prepareNormalNostrEvent(
         userAContext,
-        NostrKind.DIRECT_MESSAGE,
-        [],
-        "text message 1",
+        {
+            kind: NostrKind.DIRECT_MESSAGE,
+
+            content: "text message 1",
+        },
     );
 
     const replyMessage1WithText = await prepareReplyEvent(
diff --git a/nostr.ts b/nostr.ts
index 11c172e..1088a38 100644
--- a/nostr.ts
+++ b/nostr.ts
@@ -168,23 +168,25 @@ export async function prepareReplyEvent(
 
     return prepareNormalNostrEvent(
         sender,
-        targetEvent.kind,
-        [
-            [
-                "e",
-                targetEvent.id,
-                "",
-                "reply",
-            ],
-            ...ps.map((p) =>
+        {
+            kind: targetEvent.kind,
+            tags: [
                 [
-                    "p",
-                    p,
-                ] as TagPubKey
-            ),
-            ...tags,
-        ],
-        content,
+                    "e",
+                    targetEvent.id,
+                    "",
+                    "reply",
+                ],
+                ...ps.map((p) =>
+                    [
+                        "p",
+                        p,
+                    ] as TagPubKey
+                ),
+                ...tags,
+            ],
+            content,
+        },
     );
 }