diff --git a/config/settings.py b/config/settings.py
index b6079fb..5eb300d 100644
--- a/config/settings.py
+++ b/config/settings.py
@@ -181,7 +181,7 @@ REST_FRAMEWORK = {
 REST_USE_JWT = True
 
 SIMPLE_JWT = {
-    'ACCESS_TOKEN_LIFETIME': timedelta(minutes= 15),
+    'ACCESS_TOKEN_LIFETIME': timedelta(days=30), # minutes = 15
     'REFRESH_TOKEN_LIFETIME': timedelta(days=7),
     'ROTATE_REFRESH_TOKENS': True,
     'BLACKLIST_AFTER_ROTATION': True,
diff --git a/users/services.py b/users/services.py
index 74182e3..ea673f4 100644
--- a/users/services.py
+++ b/users/services.py
@@ -10,7 +10,8 @@ thirty_days_ago = timezone.now() - timedelta(days=30)
 
 DUPLICATE_CHECK = {
     'email': 'email',
-    'nickname': 'nickname'
+    'nickname': 'nickname',
+    'phone': 'phone'
 }
 
 class CheckUserFieldDuplicateService: