diff --git a/src/controllers/api/oauth.ts b/src/controllers/api/oauth.ts
index b4a7a405..fb23c1c8 100644
--- a/src/controllers/api/oauth.ts
+++ b/src/controllers/api/oauth.ts
@@ -1,4 +1,4 @@
-import { lodash, nip19, nip21, z } from '@/deps.ts';
+import { lodash, nip19, z } from '@/deps.ts';
 import { AppController } from '@/app.ts';
 import { parseBody } from '@/utils.ts';
 
@@ -96,7 +96,7 @@ function maybeDecodeUri(uri: string): string {
 
 const oauthAuthorizeSchema = z.object({
   pubkey: z.string().regex(/^[0-9a-f]{64}$/).optional().catch(undefined),
-  nip19: z.string().regex(new RegExp(`^${nip21.BECH32_REGEX.source}$`)).optional().catch(undefined),
+  nip19: z.string().regex(new RegExp(`^${nip19.BECH32_REGEX.source}$`)).optional().catch(undefined),
   redirect_uri: z.string().url(),
 }).superRefine((data, ctx) => {
   if (!data.pubkey && !data.nip19) {
diff --git a/src/controllers/api/streaming.ts b/src/controllers/api/streaming.ts
index 24ad1c6e..c6dcf64b 100644
--- a/src/controllers/api/streaming.ts
+++ b/src/controllers/api/streaming.ts
@@ -1,5 +1,5 @@
 import { AppController } from '@/app.ts';
-import { nip21 } from '@/deps.ts';
+import { nip19 } from '@/deps.ts';
 import { signStreams } from '@/sign.ts';
 
 const streamingController: AppController = (c) => {
@@ -17,7 +17,7 @@ const streamingController: AppController = (c) => {
     return c.json({ error: 'Missing access token' }, 401);
   }
 
-  if (!nip21.BECH32_REGEX.test(token)) {
+  if (!nip19.BECH32_REGEX.test(token)) {
     return c.json({ error: 'Invalid access token' }, 401);
   }
 
diff --git a/src/deps.ts b/src/deps.ts
index c9fc1362..e9fa5c6b 100644
--- a/src/deps.ts
+++ b/src/deps.ts
@@ -20,7 +20,7 @@ export {
   nip19,
   nip21,
   signEvent as getSignature,
-} from 'npm:nostr-tools@^1.10.1';
+} from 'npm:nostr-tools@^1.11.1';
 export { findReplyTag } from 'https://gitlab.com/soapbox-pub/mostr/-/raw/c67064aee5ade5e01597c6d23e22e53c628ef0e2/src/nostr/tags.ts';
 export { parseFormData } from 'npm:formdata-helper@^0.3.0';
 // @deno-types="npm:@types/lodash@4.14.194"
diff --git a/src/transmute.ts b/src/transmute.ts
index 397fc6e9..898f6543 100644
--- a/src/transmute.ts
+++ b/src/transmute.ts
@@ -1,4 +1,4 @@
-import { findReplyTag, lodash, nip19, nip21, TTLCache, unfurl, z } from '@/deps.ts';
+import { findReplyTag, lodash, nip19, TTLCache, unfurl, z } from '@/deps.ts';
 import { type Event } from '@/event.ts';
 import { emojiTagSchema, filteredArray, type MetaContent, parseMetaContent } from '@/schema.ts';
 
@@ -151,7 +151,7 @@ function buildInlineRecipients(mentions: Mention[]): string {
   if (!mentions.length) return '';
 
   const elements = mentions.reduce<string[]>((acc, { url, username }) => {
-    const name = nip21.BECH32_REGEX.test(username) ? username.substring(0, 8) : username;
+    const name = nip19.BECH32_REGEX.test(username) ? username.substring(0, 8) : username;
     acc.push(`<a href="${url}" class="u-url mention" rel="ugc">@<span>${name}</span></a>`);
     return acc;
   }, []);
diff --git a/src/utils.ts b/src/utils.ts
index 4f821702..b78f0fea 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -1,5 +1,5 @@
 import { getAuthor } from '@/client.ts';
-import { Context, getPublicKey, nip19, nip21, parseFormData } from '@/deps.ts';
+import { Context, getPublicKey, nip19, parseFormData } from '@/deps.ts';
 import { type Event } from '@/event.ts';
 import { lookupNip05Cached } from '@/nip05.ts';
 
@@ -25,7 +25,7 @@ function getKeys(c: Context) {
 
 /** Return true if the value is a bech32 string, eg for use with NIP-19. */
 function isBech32(value: unknown): value is string {
-  return typeof value === 'string' && nip21.BECH32_REGEX.test(value);
+  return typeof value === 'string' && nip19.BECH32_REGEX.test(value);
 }
 
 /** Return true if the value is a Nostr pubkey, private key, or event ID. */