diff --git a/README.md b/README.md
index 07999de..5f5b89d 100644
--- a/README.md
+++ b/README.md
@@ -65,7 +65,7 @@ Returns:
 ```json
 {
   "accessToken": "...",
-  "accessTokenExpiresIn": 900,
+  "accessTokenExpiresIn": 43200,
   "refreshToken": "...",
   "refreshTokenExpiresIn": 2592000,
   "user": {
diff --git a/src/config.ts b/src/config.ts
index 391770e..abbb7c9 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -15,7 +15,7 @@ export const config = {
   redisUrl: required('REDIS_URL', 'redis://localhost:6380'),
   jwtSecret: required('JWT_SECRET', 'dev-only-change-this-secret-at-least-32-bytes'),
   jwtIssuer: process.env.JWT_ISSUER ?? 'atnmy-stdo-auth',
-  accessTokenTtlSeconds: toInt(process.env.ACCESS_TOKEN_TTL_SECONDS, 60 * 60),
+  accessTokenTtlSeconds: toInt(process.env.ACCESS_TOKEN_TTL_SECONDS, 12 * 60 * 60),
   refreshTokenTtlSeconds: toInt(process.env.REFRESH_TOKEN_TTL_SECONDS, 30 * 24 * 60 * 60),
   handoffTokenTtlSeconds: toInt(process.env.HANDOFF_TOKEN_TTL_SECONDS, 60),
   maxFailedLoginAttempts: toInt(process.env.MAX_FAILED_LOGIN_ATTEMPTS, 5),