diff --git a/package.json b/package.json
index f9a47fff6..f96e996b2 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,6 @@
     "version": "1.0.0",
     "license": "AGPL-3.0-only",
     "devDependencies": {
-        "@simplewebauthn/types": "9.0.1",
         "@types/autocannon": "^7.12.6",
         "@types/chai": "^5.0.1",
         "@types/cross-spawn": "^6.0.6",
diff --git a/packages/hydrooj/package.json b/packages/hydrooj/package.json
index 1db516935..674f43e5e 100644
--- a/packages/hydrooj/package.json
+++ b/packages/hydrooj/package.json
@@ -20,7 +20,7 @@
         "@hydrooj/common": "workspace:^",
         "@hydrooj/framework": "workspace:^",
         "@hydrooj/utils": "workspace:^",
-        "@simplewebauthn/server": "9.0.3",
+        "@simplewebauthn/server": "13.1.1",
         "@undefined-moe/require-resolve-hook": "^1.1.0",
         "@yarnpkg/libzip": "^3.1.0",
         "adm-zip": "0.5.14",
diff --git a/packages/hydrooj/src/handler/home.ts b/packages/hydrooj/src/handler/home.ts
index dc180c74a..55a6fd691 100644
--- a/packages/hydrooj/src/handler/home.ts
+++ b/packages/hydrooj/src/handler/home.ts
@@ -1,5 +1,6 @@
 import path from 'path';
 import { generateRegistrationOptions, verifyRegistrationResponse } from '@simplewebauthn/server';
+import { isoBase64URL, isoUint8Array } from '@simplewebauthn/server/helpers';
 import yaml from 'js-yaml';
 import { pick } from 'lodash';
 import { Binary, ObjectId } from 'mongodb';
@@ -288,12 +289,12 @@ class HomeSecurityHandler extends Handler {
         const options = await generateRegistrationOptions({
             rpName: system.get('server.name'),
             rpID: this.getAuthnHost(),
-            userID: this.user._id.toString(),
+            userID: isoUint8Array.fromUTF8String(this.user._id.toString()),
             userDisplayName: this.user.uname,
             userName: `${this.user.uname}(${this.user.mail})`,
             attestationType: 'direct',
             excludeCredentials: this.user._authenticators.map((c) => ({
-                id: c.credentialID.buffer,
+                id: isoBase64URL.fromBuffer(c.credentialID.buffer),
                 type: 'public-key',
             })),
             authenticatorSelection: {
@@ -316,12 +317,13 @@ class HomeSecurityHandler extends Handler {
         }).catch(() => { throw new ValidationError('verify'); });
         if (!verification.verified) throw new ValidationError('verify');
         const info = verification.registrationInfo;
-        const id = Buffer.from(info.credentialID);
+        const id = isoBase64URL.toBuffer(info.credential.id);
         if (this.user._authenticators.find((c) => c.credentialID.buffer.toString() === id.toString())) throw new ValidationError('authenticator');
         this.user._authenticators.push({
             ...info,
+            counter: info.credential.counter,
             credentialID: new Binary(id),
-            credentialPublicKey: new Binary(Buffer.from(info.credentialPublicKey)),
+            credentialPublicKey: new Binary(Buffer.from(info.credential.publicKey)),
             attestationObject: new Binary(Buffer.from(info.attestationObject)),
             name,
             regat: Date.now(),
diff --git a/packages/hydrooj/src/handler/user.ts b/packages/hydrooj/src/handler/user.ts
index cebb40d91..9776cc879 100644
--- a/packages/hydrooj/src/handler/user.ts
+++ b/packages/hydrooj/src/handler/user.ts
@@ -1,4 +1,5 @@
 import { generateAuthenticationOptions, verifyAuthenticationResponse } from '@simplewebauthn/server';
+import { isoBase64URL } from '@simplewebauthn/server/helpers';
 import moment from 'moment-timezone';
 import type { Binary } from 'mongodb';
 import type { Context } from '../context';
@@ -144,8 +145,7 @@ class UserWebauthnHandler extends Handler {
         if (!udoc.authn) throw new AuthOperationError('authn', 'disabled');
         const options = await generateAuthenticationOptions({
             allowCredentials: udoc._authenticators.map((authenticator) => ({
-                id: authenticator.credentialID.buffer,
-                type: 'public-key',
+                id: isoBase64URL.fromBuffer(authenticator.credentialID.buffer),
             })),
             rpID: this.getAuthnHost(),
             userVerification: 'preferred',
@@ -169,10 +169,10 @@ class UserWebauthnHandler extends Handler {
             expectedChallenge: challenge,
             expectedOrigin: this.request.headers.origin,
             expectedRPID: this.getAuthnHost(),
-            authenticator: {
+            credential: {
                 ...authenticator,
-                credentialID: authenticator.credentialID.buffer,
-                credentialPublicKey: authenticator.credentialPublicKey.buffer,
+                id: isoBase64URL.fromBuffer(authenticator.credentialID.buffer),
+                publicKey: authenticator.credentialPublicKey.buffer,
             },
         }).catch(() => null);
         if (!verification?.verified) throw new ValidationError('authenticator');
diff --git a/packages/hydrooj/src/interface.ts b/packages/hydrooj/src/interface.ts
index 2edb4803b..71cebc8cf 100644
--- a/packages/hydrooj/src/interface.ts
+++ b/packages/hydrooj/src/interface.ts
@@ -1,6 +1,5 @@
+import type { AttestationFormat, CredentialDeviceType, } from '@simplewebauthn/server';
 import type { AuthenticationExtensionsAuthenticatorOutputs } from '@simplewebauthn/server/esm/helpers/decodeAuthenticatorExtensions';
-import type { AttestationFormat } from '@simplewebauthn/server/helpers';
-import { CredentialDeviceType } from '@simplewebauthn/types';
 import type fs from 'fs';
 import type { Dictionary, NumericDictionary } from 'lodash';
 import type { Binary, FindCursor, ObjectId } from 'mongodb';
diff --git a/packages/hydrooj/src/model/user.ts b/packages/hydrooj/src/model/user.ts
index de315081c..cfb4226b5 100644
--- a/packages/hydrooj/src/model/user.ts
+++ b/packages/hydrooj/src/model/user.ts
@@ -127,18 +127,12 @@ export class User {
             : doc.owner === this._id || (doc.maintainer || []).includes(this._id);
     }
 
-    hasPerm(...perm: bigint[]) {
-        for (const i in perm) {
-            if ((this.perm & this.scope & perm[i]) === perm[i]) return true;
-        }
-        return false;
+    hasPerm(...perms: bigint[]) {
+        return perms.some((perm) => (this.perm & this.scope & perm) === perm);
     }
 
-    hasPriv(...priv: number[]) {
-        for (const i in priv) {
-            if ((this.priv & priv[i]) === priv[i]) return true;
-        }
-        return false;
+    hasPriv(...privs: number[]) {
+        return privs.some((priv) => (this.priv & priv) === priv);
     }
 
     async checkPassword(password: string) {
diff --git a/packages/ui-default/package.json b/packages/ui-default/package.json
index 60add35b6..744e9bcc5 100644
--- a/packages/ui-default/package.json
+++ b/packages/ui-default/package.json
@@ -27,7 +27,7 @@
     "@hydrooj/utils": "workspace:^",
     "@sentry/browser": "^8.54.0",
     "@sentry/webpack-plugin": "^3.1.2",
-    "@simplewebauthn/browser": "9.0.1",
+    "@simplewebauthn/browser": "13.1.0",
     "@svgr/webpack": "^8.1.0",
     "@types/jquery": "^3.5.32",
     "@types/jquery.transit": "^0.9.33",
diff --git a/packages/ui-default/pages/home_security.page.ts b/packages/ui-default/pages/home_security.page.ts
index 972d17315..53a4b61a1 100644
--- a/packages/ui-default/pages/home_security.page.ts
+++ b/packages/ui-default/pages/home_security.page.ts
@@ -68,7 +68,7 @@ async function enableAuthn(type: string) {
   let credential;
   try {
     console.log(authnInfo);
-    credential = await startRegistration(authnInfo.authOptions);
+    credential = await startRegistration({ optionsJSON: authnInfo.authOptions });
   } catch (err) {
     Notification.error(i18n('Failed to get credential: {0}', err));
     return;
diff --git a/packages/ui-default/pages/user_verify.page.ts b/packages/ui-default/pages/user_verify.page.ts
index bb5e559ef..767a99a70 100644
--- a/packages/ui-default/pages/user_verify.page.ts
+++ b/packages/ui-default/pages/user_verify.page.ts
@@ -18,7 +18,7 @@ async function verifywebauthn($form) {
     return null;
   }
   Notification.info(i18n('Please follow the instructions on your device to complete the verification.'));
-  const result = await startAuthentication(authnInfo.authOptions)
+  const result = await startAuthentication({ optionsJSON: authnInfo.authOptions })
     .catch((e) => {
       Notification.error(i18n('Failed to get credential: {0}', e));
       return null;