diff --git a/config/settings.py b/config/settings.py
index f1a6851..23aeb12 100644
--- a/config/settings.py
+++ b/config/settings.py
@@ -225,7 +225,7 @@ REST_FRAMEWORK = {
     'DEFAULT_FILTER_BACKENDS': ['django_filters.rest_framework.DjangoFilterBackend'],
     'DEFAULT_AUTHENTICATION_CLASSES': ('knox.auth.TokenAuthentication', ),
     'DEFAULT_PERMISSION_CLASSES': [
-        'rest_framework.permissions.IsAuthenticated',
+        'rest_framework.permissions.AllowAny',  # デフォルトは認証不要に変更
     ],
 }