diff --git a/src/accounts/user.js b/src/accounts/user.js
index 4c3cac7..b224edf 100644
--- a/src/accounts/user.js
+++ b/src/accounts/user.js
@@ -5,6 +5,7 @@ import { createTokens } from './tokens.js'
 const { ObjectId } = mongo
 
 const JWTSignature = process.env.JWT_SIGNATURE
+const { ROOT_DOMAIN } = process.env
 
 export async function getUserFromCookies(request, reply) {
   try {
@@ -58,13 +59,13 @@ export async function refreshTokens(sessionToken, userId, reply) {
     reply
       .setCookie('refreshToken', refreshToken, {
         path: "/",
-        domain: "localhost",
+        domain: ROOT_DOMAIN,
         httpOnly: true,
         secure: true,
         expires: refreshExpires,
       }).setCookie('accessToken', accessToken, {
         path: "/",
-        domain: "localhost",
+        domain: ROOT_DOMAIN,
         httpOnly: true,
         secure: true,
       })