diff --git a/src/core/settings.py b/src/core/settings.py
index e0f2038..cdaec20 100644
--- a/src/core/settings.py
+++ b/src/core/settings.py
@@ -113,6 +113,10 @@ AUTH_PASSWORD_VALIDATORS = [
 
 AUTH_USER_MODEL = "lyric.User"
 
+AUTHENTICATION_BACKENDS = [
+    "apps.lyric.authentication.PasswordlessAuthenticationBackend",
+]
+
 
 # Internationalization
 # https://docs.djangoproject.com/en/6.0/topics/i18n/